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* memory leak in create_ctx
@ 2019-06-08 19:13 syzbot
  2019-06-08 23:47 ` Jakub Kicinski
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: syzbot @ 2019-06-08 19:13 UTC (permalink / raw)
  To: aviadye, borisp, daniel, davejwatson, davem, john.fastabend,
	linux-kernel, netdev, syzkaller-bugs

Hello,

syzbot found the following crash on:

HEAD commit:    79c3ba32 Merge tag 'drm-fixes-2019-06-07-1' of git://anong..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=170e0bfea00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d5c73825cbdc7326
dashboard link: https://syzkaller.appspot.com/bug?extid=06537213db7ba2745c4a
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10aa806aa00000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+06537213db7ba2745c4a@syzkaller.appspotmail.com

IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
2019/06/08 14:55:51 executed programs: 15
2019/06/08 14:55:56 executed programs: 31
2019/06/08 14:56:02 executed programs: 51
BUG: memory leak
unreferenced object 0xffff888117ceae00 (size 512):
   comm "syz-executor.3", pid 7233, jiffies 4294949016 (age 13.640s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<00000000e6550967>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
     [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
     [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
     [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
     [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
     [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
     [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2784
     [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
     [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3124
     [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88810965dc00 (size 512):
   comm "syz-executor.2", pid 7235, jiffies 4294949016 (age 13.640s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<00000000e6550967>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
     [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
     [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
     [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
     [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
     [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
     [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2784
     [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
     [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3124
     [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881207d7600 (size 512):
   comm "syz-executor.5", pid 7244, jiffies 4294949019 (age 13.610s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<00000000e6550967>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
     [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
     [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
     [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
     [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
     [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
     [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2784
     [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
     [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3124
     [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9



---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: memory leak in create_ctx
  2019-06-08 19:13 memory leak in create_ctx syzbot
@ 2019-06-08 23:47 ` Jakub Kicinski
  2019-06-10 20:59 ` [net/tls] " Eric Biggers
  2019-07-01  5:28 ` John Fastabend
  2 siblings, 0 replies; 5+ messages in thread
From: Jakub Kicinski @ 2019-06-08 23:47 UTC (permalink / raw)
  To: syzbot
  Cc: aviadye, borisp, daniel, davejwatson, davem, john.fastabend,
	linux-kernel, netdev, syzkaller-bugs

On Sat, 08 Jun 2019 12:13:06 -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    79c3ba32 Merge tag 'drm-fixes-2019-06-07-1' of git://anong..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=170e0bfea00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d5c73825cbdc7326
> dashboard link: https://syzkaller.appspot.com/bug?extid=06537213db7ba2745c4a
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10aa806aa00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+06537213db7ba2745c4a@syzkaller.appspotmail.com

This one creates a TCPv6 socket, puts it in repair mode, connects and
then adds a tls ULP.  Apparently that leaks the entire TLS context but 
I can't repro..

> IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
> 2019/06/08 14:55:51 executed programs: 15
> 2019/06/08 14:55:56 executed programs: 31
> 2019/06/08 14:56:02 executed programs: 51
> BUG: memory leak
> unreferenced object 0xffff888117ceae00 (size 512):
>    comm "syz-executor.3", pid 7233, jiffies 4294949016 (age 13.640s)
>    hex dump (first 32 bytes):
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>    backtrace:
>      [<00000000e6550967>] kmemleak_alloc_recursive  
> include/linux/kmemleak.h:55 [inline]
>      [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>      [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>      [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>      [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>      [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>      [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>      [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>      [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>      [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>      [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>      [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
> net/ipv4/tcp.c:2784
>      [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>      [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
> net/core/sock.c:3124
>      [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>      [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>      [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>      [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>      [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
> arch/x86/entry/common.c:301
>      [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> BUG: memory leak
> unreferenced object 0xffff88810965dc00 (size 512):
>    comm "syz-executor.2", pid 7235, jiffies 4294949016 (age 13.640s)
>    hex dump (first 32 bytes):
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>    backtrace:
>      [<00000000e6550967>] kmemleak_alloc_recursive  
> include/linux/kmemleak.h:55 [inline]
>      [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>      [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>      [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>      [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>      [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>      [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>      [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>      [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>      [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>      [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>      [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
> net/ipv4/tcp.c:2784
>      [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>      [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
> net/core/sock.c:3124
>      [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>      [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>      [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>      [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>      [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
> arch/x86/entry/common.c:301
>      [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> BUG: memory leak
> unreferenced object 0xffff8881207d7600 (size 512):
>    comm "syz-executor.5", pid 7244, jiffies 4294949019 (age 13.610s)
>    hex dump (first 32 bytes):
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>    backtrace:
>      [<00000000e6550967>] kmemleak_alloc_recursive  
> include/linux/kmemleak.h:55 [inline]
>      [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>      [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>      [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>      [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>      [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>      [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>      [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>      [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>      [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>      [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>      [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
> net/ipv4/tcp.c:2784
>      [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>      [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
> net/core/sock.c:3124
>      [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>      [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>      [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>      [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>      [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
> arch/x86/entry/common.c:301
>      [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> 
> 
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
> 
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this bug, for details see:
> https://goo.gl/tpsmEJ#testing-patches


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [net/tls] Re: memory leak in create_ctx
  2019-06-08 19:13 memory leak in create_ctx syzbot
  2019-06-08 23:47 ` Jakub Kicinski
@ 2019-06-10 20:59 ` Eric Biggers
  2019-07-01  5:28 ` John Fastabend
  2 siblings, 0 replies; 5+ messages in thread
From: Eric Biggers @ 2019-06-10 20:59 UTC (permalink / raw)
  To: Boris Pismenny, Aviad Yehezkel, Dave Watson, John Fastabend,
	Daniel Borkmann
  Cc: syzbot, davem, linux-kernel, netdev, syzkaller-bugs

Looks like a TLS bug.  icsk->icsk_ulp_data isn't always freed.

On Sat, Jun 08, 2019 at 12:13:06PM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    79c3ba32 Merge tag 'drm-fixes-2019-06-07-1' of git://anong..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=170e0bfea00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d5c73825cbdc7326
> dashboard link: https://syzkaller.appspot.com/bug?extid=06537213db7ba2745c4a
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10aa806aa00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+06537213db7ba2745c4a@syzkaller.appspotmail.com
> 
> IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
> 2019/06/08 14:55:51 executed programs: 15
> 2019/06/08 14:55:56 executed programs: 31
> 2019/06/08 14:56:02 executed programs: 51
> BUG: memory leak
> unreferenced object 0xffff888117ceae00 (size 512):
>   comm "syz-executor.3", pid 7233, jiffies 4294949016 (age 13.640s)
>   hex dump (first 32 bytes):
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<00000000e6550967>] kmemleak_alloc_recursive
> include/linux/kmemleak.h:55 [inline]
>     [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>     [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>     [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>     [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>     [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>     [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>     [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>     [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>     [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>     [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>     [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60
> net/ipv4/tcp.c:2784
>     [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>     [<00000000c840962c>] sock_common_setsockopt+0x38/0x50
> net/core/sock.c:3124
>     [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>     [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>     [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>     [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>     [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0
> arch/x86/entry/common.c:301
>     [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> BUG: memory leak
> unreferenced object 0xffff88810965dc00 (size 512):
>   comm "syz-executor.2", pid 7235, jiffies 4294949016 (age 13.640s)
>   hex dump (first 32 bytes):
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<00000000e6550967>] kmemleak_alloc_recursive
> include/linux/kmemleak.h:55 [inline]
>     [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>     [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>     [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>     [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>     [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>     [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>     [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>     [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>     [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>     [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>     [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60
> net/ipv4/tcp.c:2784
>     [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>     [<00000000c840962c>] sock_common_setsockopt+0x38/0x50
> net/core/sock.c:3124
>     [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>     [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>     [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>     [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>     [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0
> arch/x86/entry/common.c:301
>     [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> BUG: memory leak
> unreferenced object 0xffff8881207d7600 (size 512):
>   comm "syz-executor.5", pid 7244, jiffies 4294949019 (age 13.610s)
>   hex dump (first 32 bytes):
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<00000000e6550967>] kmemleak_alloc_recursive
> include/linux/kmemleak.h:55 [inline]
>     [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>     [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>     [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>     [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>     [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>     [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>     [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>     [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>     [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>     [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>     [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60
> net/ipv4/tcp.c:2784
>     [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>     [<00000000c840962c>] sock_common_setsockopt+0x38/0x50
> net/core/sock.c:3124
>     [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>     [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>     [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>     [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>     [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0
> arch/x86/entry/common.c:301
>     [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> 
> 
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
> 
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this bug, for details see:
> https://goo.gl/tpsmEJ#testing-patches
> 

^ permalink raw reply	[flat|nested] 5+ messages in thread
* RE: memory leak in create_ctx
  2019-06-08 19:13 memory leak in create_ctx syzbot
  2019-06-08 23:47 ` Jakub Kicinski
  2019-06-10 20:59 ` [net/tls] " Eric Biggers
@ 2019-07-01  5:28 ` John Fastabend
  2019-07-01  5:40   ` syzbot
  2 siblings, 1 reply; 5+ messages in thread
From: John Fastabend @ 2019-07-01  5:28 UTC (permalink / raw)
  To: syzbot, aviadye, borisp, daniel, davejwatson, davem,
	john.fastabend, linux-kernel, netdev, syzkaller-bugs

syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    79c3ba32 Merge tag 'drm-fixes-2019-06-07-1' of git://anong..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=170e0bfea00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d5c73825cbdc7326
> dashboard link: https://syzkaller.appspot.com/bug?extid=06537213db7ba2745c4a
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10aa806aa00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+06537213db7ba2745c4a@syzkaller.appspotmail.com
> 
> IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
> 2019/06/08 14:55:51 executed programs: 15
> 2019/06/08 14:55:56 executed programs: 31
> 2019/06/08 14:56:02 executed programs: 51
> BUG: memory leak
> unreferenced object 0xffff888117ceae00 (size 512):
>    comm "syz-executor.3", pid 7233, jiffies 4294949016 (age 13.640s)
>    hex dump (first 32 bytes):
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>    backtrace:
>      [<00000000e6550967>] kmemleak_alloc_recursive  
> include/linux/kmemleak.h:55 [inline]
>      [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>      [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>      [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>      [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>      [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>      [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>      [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>      [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>      [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>      [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>      [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
> net/ipv4/tcp.c:2784
>      [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>      [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
> net/core/sock.c:3124
>      [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>      [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>      [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>      [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>      [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
> arch/x86/entry/common.c:301
>      [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> BUG: memory leak
> unreferenced object 0xffff88810965dc00 (size 512):
>    comm "syz-executor.2", pid 7235, jiffies 4294949016 (age 13.640s)
>    hex dump (first 32 bytes):
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>    backtrace:
>      [<00000000e6550967>] kmemleak_alloc_recursive  
> include/linux/kmemleak.h:55 [inline]
>      [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>      [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>      [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>      [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>      [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>      [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>      [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>      [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>      [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>      [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>      [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
> net/ipv4/tcp.c:2784
>      [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>      [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
> net/core/sock.c:3124
>      [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>      [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>      [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>      [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>      [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
> arch/x86/entry/common.c:301
>      [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> BUG: memory leak
> unreferenced object 0xffff8881207d7600 (size 512):
>    comm "syz-executor.5", pid 7244, jiffies 4294949019 (age 13.610s)
>    hex dump (first 32 bytes):
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>    backtrace:
>      [<00000000e6550967>] kmemleak_alloc_recursive  
> include/linux/kmemleak.h:55 [inline]
>      [<00000000e6550967>] slab_post_alloc_hook mm/slab.h:439 [inline]
>      [<00000000e6550967>] slab_alloc mm/slab.c:3326 [inline]
>      [<00000000e6550967>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
>      [<0000000014132182>] kmalloc include/linux/slab.h:547 [inline]
>      [<0000000014132182>] kzalloc include/linux/slab.h:742 [inline]
>      [<0000000014132182>] create_ctx+0x25/0x70 net/tls/tls_main.c:601
>      [<00000000e08e1a44>] tls_init net/tls/tls_main.c:787 [inline]
>      [<00000000e08e1a44>] tls_init+0x97/0x1e0 net/tls/tls_main.c:769
>      [<0000000037b0c43c>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
>      [<0000000037b0c43c>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
>      [<000000007a284277>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
> net/ipv4/tcp.c:2784
>      [<00000000f35f3415>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3098
>      [<00000000c840962c>] sock_common_setsockopt+0x38/0x50  
> net/core/sock.c:3124
>      [<0000000006b0801f>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
>      [<00000000a6309f52>] __do_sys_setsockopt net/socket.c:2083 [inline]
>      [<00000000a6309f52>] __se_sys_setsockopt net/socket.c:2080 [inline]
>      [<00000000a6309f52>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
>      [<00000000fa555bbc>] do_syscall_64+0x76/0x1a0  
> arch/x86/entry/common.c:301
>      [<00000000a06d7d1a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> 
> 
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
> 
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this bug, for details see:
> https://goo.gl/tpsmEJ#testing-patches

#syz test: git://github.com/cilium/linux ktls-unhash

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: memory leak in create_ctx
  2019-07-01  5:28 ` John Fastabend
@ 2019-07-01  5:40   ` syzbot
  0 siblings, 0 replies; 5+ messages in thread
From: syzbot @ 2019-07-01  5:40 UTC (permalink / raw)
  To: aviadye, borisp, daniel, davejwatson, davem, john.fastabend,
	linux-kernel, netdev, syzkaller-bugs

Hello,

syzbot has tested the proposed patch but the reproducer still triggered  
crash:
memory leak in create_ctx

2019/07/01 05:38:26 executed programs: 23
BUG: memory leak
unreferenced object 0xffff888102914e00 (size 512):
   comm "syz-executor.4", pid 7333, jiffies 4294944085 (age 13.950s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<000000002f2bb8be>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<000000002f2bb8be>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<000000002f2bb8be>] slab_alloc mm/slab.c:3326 [inline]
     [<000000002f2bb8be>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<00000000b76aef16>] kmalloc include/linux/slab.h:547 [inline]
     [<00000000b76aef16>] kzalloc include/linux/slab.h:742 [inline]
     [<00000000b76aef16>] create_ctx+0x25/0x70 net/tls/tls_main.c:648
     [<00000000dc9c9d2e>] tls_init net/tls/tls_main.c:837 [inline]
     [<00000000dc9c9d2e>] tls_init+0x97/0x1f0 net/tls/tls_main.c:819
     [<000000009d663c39>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<000000009d663c39>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<00000000551f7621>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2789
     [<00000000d02c41d7>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3103
     [<0000000085d221c1>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3129
     [<00000000d294eeda>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000f1f1d607>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000f1f1d607>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000f1f1d607>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fbd4f794>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<000000007383b736>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888103860c00 (size 512):
   comm "syz-executor.0", pid 7342, jiffies 4294944115 (age 13.650s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<000000002f2bb8be>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<000000002f2bb8be>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<000000002f2bb8be>] slab_alloc mm/slab.c:3326 [inline]
     [<000000002f2bb8be>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<00000000b76aef16>] kmalloc include/linux/slab.h:547 [inline]
     [<00000000b76aef16>] kzalloc include/linux/slab.h:742 [inline]
     [<00000000b76aef16>] create_ctx+0x25/0x70 net/tls/tls_main.c:648
     [<00000000dc9c9d2e>] tls_init net/tls/tls_main.c:837 [inline]
     [<00000000dc9c9d2e>] tls_init+0x97/0x1f0 net/tls/tls_main.c:819
     [<000000009d663c39>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<000000009d663c39>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<00000000551f7621>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2789
     [<00000000d02c41d7>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3103
     [<0000000085d221c1>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3129
     [<00000000d294eeda>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000f1f1d607>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000f1f1d607>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000f1f1d607>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fbd4f794>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<000000007383b736>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88810e3e1c00 (size 512):
   comm "syz-executor.5", pid 7384, jiffies 4294944151 (age 13.290s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<000000002f2bb8be>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<000000002f2bb8be>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<000000002f2bb8be>] slab_alloc mm/slab.c:3326 [inline]
     [<000000002f2bb8be>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<00000000b76aef16>] kmalloc include/linux/slab.h:547 [inline]
     [<00000000b76aef16>] kzalloc include/linux/slab.h:742 [inline]
     [<00000000b76aef16>] create_ctx+0x25/0x70 net/tls/tls_main.c:648
     [<00000000dc9c9d2e>] tls_init net/tls/tls_main.c:837 [inline]
     [<00000000dc9c9d2e>] tls_init+0x97/0x1f0 net/tls/tls_main.c:819
     [<000000009d663c39>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<000000009d663c39>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<00000000551f7621>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2789
     [<00000000d02c41d7>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3103
     [<0000000085d221c1>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3129
     [<00000000d294eeda>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000f1f1d607>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000f1f1d607>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000f1f1d607>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fbd4f794>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<000000007383b736>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88811a0a7200 (size 512):
   comm "syz-executor.0", pid 7423, jiffies 4294944702 (age 7.780s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<000000002f2bb8be>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:55 [inline]
     [<000000002f2bb8be>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<000000002f2bb8be>] slab_alloc mm/slab.c:3326 [inline]
     [<000000002f2bb8be>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553
     [<00000000b76aef16>] kmalloc include/linux/slab.h:547 [inline]
     [<00000000b76aef16>] kzalloc include/linux/slab.h:742 [inline]
     [<00000000b76aef16>] create_ctx+0x25/0x70 net/tls/tls_main.c:648
     [<00000000dc9c9d2e>] tls_init net/tls/tls_main.c:837 [inline]
     [<00000000dc9c9d2e>] tls_init+0x97/0x1f0 net/tls/tls_main.c:819
     [<000000009d663c39>] __tcp_set_ulp net/ipv4/tcp_ulp.c:126 [inline]
     [<000000009d663c39>] tcp_set_ulp+0xe2/0x190 net/ipv4/tcp_ulp.c:147
     [<00000000551f7621>] do_tcp_setsockopt.isra.0+0x19a/0xd60  
net/ipv4/tcp.c:2789
     [<00000000d02c41d7>] tcp_setsockopt+0x71/0x80 net/ipv4/tcp.c:3103
     [<0000000085d221c1>] sock_common_setsockopt+0x38/0x50  
net/core/sock.c:3129
     [<00000000d294eeda>] __sys_setsockopt+0x98/0x120 net/socket.c:2072
     [<00000000f1f1d607>] __do_sys_setsockopt net/socket.c:2083 [inline]
     [<00000000f1f1d607>] __se_sys_setsockopt net/socket.c:2080 [inline]
     [<00000000f1f1d607>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2080
     [<00000000fbd4f794>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<000000007383b736>] entry_SYSCALL_64_after_hwframe+0x44/0xa9



Tested on:

commit:         0b58d013 bpf: tls, implement unhash to avoid transition ou..
git tree:       git://github.com/cilium/linux ktls-unhash
console output: https://syzkaller.appspot.com/x/log.txt?x=134f2e0ba00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3bd5897d1df43b97
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)


^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-07-01  5:40 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-06-08 19:13 memory leak in create_ctx syzbot
2019-06-08 23:47 ` Jakub Kicinski
2019-06-10 20:59 ` [net/tls] " Eric Biggers
2019-07-01  5:28 ` John Fastabend
2019-07-01  5:40   ` syzbot

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