* BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc
@ 2020-06-05 2:02 syzbot
2020-06-05 3:55 ` Eric Biggers
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: syzbot @ 2020-06-05 2:02 UTC (permalink / raw)
To: bjorn.andersson, davem, kuba, linux-kernel,
manivannan.sadhasivam, netdev, syzkaller-bugs
Hello,
syzbot found the following crash on:
HEAD commit: acf25aa6 Merge tag 'Smack-for-5.8' of git://github.com/csc..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13d6307a100000
kernel config: https://syzkaller.appspot.com/x/.config?x=5263d9b5bce03c67
dashboard link: https://syzkaller.appspot.com/bug?extid=3eec59e770685e3dc879
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15bd4c1e100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1520c9de100000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+3eec59e770685e3dc879@syzkaller.appspotmail.com
RAX: ffffffffffffffda RBX: 00007ffdf01d56d0 RCX: 00000000004406c9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000031
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f50
R13: 0000000000401fe0 R14: 0000000000000000 R15: 0000000000000000
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor036/6796
caller is radix_tree_node_alloc.constprop.0+0x200/0x330 lib/radix-tree.c:262
CPU: 0 PID: 6796 Comm: syz-executor036 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
check_preemption_disabled lib/smp_processor_id.c:47 [inline]
debug_smp_processor_id.cold+0x88/0x9b lib/smp_processor_id.c:57
radix_tree_node_alloc.constprop.0+0x200/0x330 lib/radix-tree.c:262
radix_tree_extend+0x256/0x4e0 lib/radix-tree.c:424
idr_get_free+0x60c/0x8e0 lib/radix-tree.c:1492
idr_alloc_u32+0x170/0x2d0 lib/idr.c:46
idr_alloc+0xc2/0x130 lib/idr.c:87
qrtr_port_assign net/qrtr/qrtr.c:703 [inline]
__qrtr_bind.isra.0+0x12e/0x5c0 net/qrtr/qrtr.c:756
qrtr_autobind net/qrtr/qrtr.c:787 [inline]
qrtr_autobind+0xaf/0xf0 net/qrtr/qrtr.c:775
qrtr_sendmsg+0x1d6/0x770 net/qrtr/qrtr.c:895
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6e6/0x810 net/socket.c:2352
___sys_sendmsg+0x100/0x170 net/socket.c:2406
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x4406c9
Code: 25 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffdf01d56c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffdf01d56d0 RCX: 00000000004406c9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000031
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f50
R13: 0000000000401fe0 R14: 0000000000000000 R15: 0000000000000000
---
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] 7+ messages in thread* Re: BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc 2020-06-05 2:02 BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc syzbot @ 2020-06-05 3:55 ` Eric Biggers 2020-06-05 11:29 ` Matthew Wilcox 2020-06-05 6:09 ` syzbot 2021-06-07 16:47 ` [syzbot] " syzbot 2 siblings, 1 reply; 7+ messages in thread From: Eric Biggers @ 2020-06-05 3:55 UTC (permalink / raw) To: Matthew Wilcox Cc: syzbot, bjorn.andersson, davem, kuba, linux-kernel, manivannan.sadhasivam, netdev, syzkaller-bugs [+Cc Matthew Wilcox] Possibly a bug in lib/radix-tree.c? this_cpu_ptr() in radix_tree_node_alloc() can be reached without a prior preempt_disable(). Or is the caller of idr_alloc() doing something wrong? On Thu, Jun 04, 2020 at 07:02:18PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: acf25aa6 Merge tag 'Smack-for-5.8' of git://github.com/csc.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=13d6307a100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=5263d9b5bce03c67 > dashboard link: https://syzkaller.appspot.com/bug?extid=3eec59e770685e3dc879 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15bd4c1e100000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1520c9de100000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+3eec59e770685e3dc879@syzkaller.appspotmail.com > > RAX: ffffffffffffffda RBX: 00007ffdf01d56d0 RCX: 00000000004406c9 > RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 > RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000031 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f50 > R13: 0000000000401fe0 R14: 0000000000000000 R15: 0000000000000000 > BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor036/6796 > caller is radix_tree_node_alloc.constprop.0+0x200/0x330 lib/radix-tree.c:262 > CPU: 0 PID: 6796 Comm: syz-executor036 Not tainted 5.7.0-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x188/0x20d lib/dump_stack.c:118 > check_preemption_disabled lib/smp_processor_id.c:47 [inline] > debug_smp_processor_id.cold+0x88/0x9b lib/smp_processor_id.c:57 > radix_tree_node_alloc.constprop.0+0x200/0x330 lib/radix-tree.c:262 > radix_tree_extend+0x256/0x4e0 lib/radix-tree.c:424 > idr_get_free+0x60c/0x8e0 lib/radix-tree.c:1492 > idr_alloc_u32+0x170/0x2d0 lib/idr.c:46 > idr_alloc+0xc2/0x130 lib/idr.c:87 > qrtr_port_assign net/qrtr/qrtr.c:703 [inline] > __qrtr_bind.isra.0+0x12e/0x5c0 net/qrtr/qrtr.c:756 > qrtr_autobind net/qrtr/qrtr.c:787 [inline] > qrtr_autobind+0xaf/0xf0 net/qrtr/qrtr.c:775 > qrtr_sendmsg+0x1d6/0x770 net/qrtr/qrtr.c:895 > sock_sendmsg_nosec net/socket.c:652 [inline] > sock_sendmsg+0xcf/0x120 net/socket.c:672 > ____sys_sendmsg+0x6e6/0x810 net/socket.c:2352 > ___sys_sendmsg+0x100/0x170 net/socket.c:2406 > __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 > do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 > entry_SYSCALL_64_after_hwframe+0x49/0xb3 > RIP: 0033:0x4406c9 > Code: 25 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 > RSP: 002b:00007ffdf01d56c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e > RAX: ffffffffffffffda RBX: 00007ffdf01d56d0 RCX: 00000000004406c9 > RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 > RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000031 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f50 > R13: 0000000000401fe0 R14: 0000000000000000 R15: 0000000000000000 > > > --- > 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] 7+ messages in thread
* Re: BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc 2020-06-05 3:55 ` Eric Biggers @ 2020-06-05 11:29 ` Matthew Wilcox 2020-06-05 16:11 ` Eric Biggers 0 siblings, 1 reply; 7+ messages in thread From: Matthew Wilcox @ 2020-06-05 11:29 UTC (permalink / raw) To: Eric Biggers Cc: syzbot, bjorn.andersson, davem, kuba, linux-kernel, manivannan.sadhasivam, netdev, syzkaller-bugs On Thu, Jun 04, 2020 at 08:55:55PM -0700, Eric Biggers wrote: > Possibly a bug in lib/radix-tree.c? this_cpu_ptr() in radix_tree_node_alloc() > can be reached without a prior preempt_disable(). Or is the caller of > idr_alloc() doing something wrong? Yes, the idr_alloc() call is plainly wrong: mutex_lock(&qrtr_port_lock); if (!*port) { rc = idr_alloc(&qrtr_ports, ipc, QRTR_MIN_EPH_SOCKET, QRTR_MAX_EPH_SOCKET + 1, GFP_ATOMIC); If we can take a mutex lock, there's no excuse to be using GFP_ATOMIC. That (and the call slightly lower in the function) should be GFP_KERNEL as the minimal fix (below). I'll send a followup patch which converts this IDR to the XArray instead. diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index 2d8d6131bc5f..d2547711d20c 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -692,15 +692,15 @@ static int qrtr_port_assign(struct qrtr_sock *ipc, int *port) if (!*port) { rc = idr_alloc(&qrtr_ports, ipc, QRTR_MIN_EPH_SOCKET, QRTR_MAX_EPH_SOCKET + 1, - GFP_ATOMIC); + GFP_KERNEL); if (rc >= 0) *port = rc; } else if (*port < QRTR_MIN_EPH_SOCKET && !capable(CAP_NET_ADMIN)) { rc = -EACCES; } else if (*port == QRTR_PORT_CTRL) { - rc = idr_alloc(&qrtr_ports, ipc, 0, 1, GFP_ATOMIC); + rc = idr_alloc(&qrtr_ports, ipc, 0, 1, GFP_KERNEL); } else { - rc = idr_alloc(&qrtr_ports, ipc, *port, *port + 1, GFP_ATOMIC); + rc = idr_alloc(&qrtr_ports, ipc, *port, *port + 1, GFP_KERNEL); if (rc >= 0) *port = rc; } > On Thu, Jun 04, 2020 at 07:02:18PM -0700, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: acf25aa6 Merge tag 'Smack-for-5.8' of git://github.com/csc.. > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=13d6307a100000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=5263d9b5bce03c67 > > dashboard link: https://syzkaller.appspot.com/bug?extid=3eec59e770685e3dc879 > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15bd4c1e100000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1520c9de100000 > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+3eec59e770685e3dc879@syzkaller.appspotmail.com > > > > RAX: ffffffffffffffda RBX: 00007ffdf01d56d0 RCX: 00000000004406c9 > > RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 > > RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000031 > > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f50 > > R13: 0000000000401fe0 R14: 0000000000000000 R15: 0000000000000000 > > BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor036/6796 > > caller is radix_tree_node_alloc.constprop.0+0x200/0x330 lib/radix-tree.c:262 > > CPU: 0 PID: 6796 Comm: syz-executor036 Not tainted 5.7.0-syzkaller #0 > > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > > Call Trace: > > __dump_stack lib/dump_stack.c:77 [inline] > > dump_stack+0x188/0x20d lib/dump_stack.c:118 > > check_preemption_disabled lib/smp_processor_id.c:47 [inline] > > debug_smp_processor_id.cold+0x88/0x9b lib/smp_processor_id.c:57 > > radix_tree_node_alloc.constprop.0+0x200/0x330 lib/radix-tree.c:262 > > radix_tree_extend+0x256/0x4e0 lib/radix-tree.c:424 > > idr_get_free+0x60c/0x8e0 lib/radix-tree.c:1492 > > idr_alloc_u32+0x170/0x2d0 lib/idr.c:46 > > idr_alloc+0xc2/0x130 lib/idr.c:87 > > qrtr_port_assign net/qrtr/qrtr.c:703 [inline] > > __qrtr_bind.isra.0+0x12e/0x5c0 net/qrtr/qrtr.c:756 > > qrtr_autobind net/qrtr/qrtr.c:787 [inline] > > qrtr_autobind+0xaf/0xf0 net/qrtr/qrtr.c:775 > > qrtr_sendmsg+0x1d6/0x770 net/qrtr/qrtr.c:895 > > sock_sendmsg_nosec net/socket.c:652 [inline] > > sock_sendmsg+0xcf/0x120 net/socket.c:672 > > ____sys_sendmsg+0x6e6/0x810 net/socket.c:2352 > > ___sys_sendmsg+0x100/0x170 net/socket.c:2406 > > __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 > > do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 > > entry_SYSCALL_64_after_hwframe+0x49/0xb3 > > RIP: 0033:0x4406c9 > > Code: 25 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 > > RSP: 002b:00007ffdf01d56c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e > > RAX: ffffffffffffffda RBX: 00007ffdf01d56d0 RCX: 00000000004406c9 > > RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 > > RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000031 > > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f50 > > R13: 0000000000401fe0 R14: 0000000000000000 R15: 0000000000000000 > > > > > > --- > > 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 related [flat|nested] 7+ messages in thread
* Re: BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc 2020-06-05 11:29 ` Matthew Wilcox @ 2020-06-05 16:11 ` Eric Biggers 0 siblings, 0 replies; 7+ messages in thread From: Eric Biggers @ 2020-06-05 16:11 UTC (permalink / raw) To: Matthew Wilcox Cc: syzbot, bjorn.andersson, davem, kuba, linux-kernel, manivannan.sadhasivam, netdev, syzkaller-bugs On Fri, Jun 05, 2020 at 04:29:22AM -0700, Matthew Wilcox wrote: > On Thu, Jun 04, 2020 at 08:55:55PM -0700, Eric Biggers wrote: > > Possibly a bug in lib/radix-tree.c? this_cpu_ptr() in radix_tree_node_alloc() > > can be reached without a prior preempt_disable(). Or is the caller of > > idr_alloc() doing something wrong? > > Yes, the idr_alloc() call is plainly wrong: > > mutex_lock(&qrtr_port_lock); > if (!*port) { > rc = idr_alloc(&qrtr_ports, ipc, > QRTR_MIN_EPH_SOCKET, QRTR_MAX_EPH_SOCKET + 1, > GFP_ATOMIC); > > If we can take a mutex lock, there's no excuse to be using GFP_ATOMIC. > That (and the call slightly lower in the function) should be GFP_KERNEL > as the minimal fix (below). I'll send a followup patch which converts > this IDR to the XArray instead. I did see that the GFP_ATOMIC was unnecessary, but it wasn't obvious to me that it was actually *wrong*. Shouldn't this requirement be documented for the @gfp argument to idr_alloc()? - Eric ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc 2020-06-05 2:02 BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc syzbot 2020-06-05 3:55 ` Eric Biggers @ 2020-06-05 6:09 ` syzbot 2021-06-07 16:47 ` [syzbot] " syzbot 2 siblings, 0 replies; 7+ messages in thread From: syzbot @ 2020-06-05 6:09 UTC (permalink / raw) To: bjorn.andersson, davem, ebiggers, kuba, linux-kernel, manivannan.sadhasivam, netdev, syzkaller-bugs, willy syzbot has bisected this bug to: commit e42671084361302141a09284fde9bbc14fdd16bf Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Date: Thu May 7 12:53:06 2020 +0000 net: qrtr: Do not depend on ARCH_QCOM bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e22212100000 start commit: acf25aa6 Merge tag 'Smack-for-5.8' of git://github.com/csc.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=14122212100000 console output: https://syzkaller.appspot.com/x/log.txt?x=10122212100000 kernel config: https://syzkaller.appspot.com/x/.config?x=5263d9b5bce03c67 dashboard link: https://syzkaller.appspot.com/bug?extid=3eec59e770685e3dc879 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15bd4c1e100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1520c9de100000 Reported-by: syzbot+3eec59e770685e3dc879@syzkaller.appspotmail.com Fixes: e42671084361 ("net: qrtr: Do not depend on ARCH_QCOM") For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [syzbot] BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc 2020-06-05 2:02 BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc syzbot 2020-06-05 3:55 ` Eric Biggers 2020-06-05 6:09 ` syzbot @ 2021-06-07 16:47 ` syzbot 2021-06-07 16:58 ` Matthew Wilcox 2 siblings, 1 reply; 7+ messages in thread From: syzbot @ 2021-06-07 16:47 UTC (permalink / raw) To: bjorn.andersson, brookebasile, coreteam, davem, dsahern, ducheng2, ebiggers, fw, gregkh, kadlec, kuba, linux-kernel, manivannan.sadhasivam, netdev, netfilter-devel, pablo, skhan, syzkaller-bugs, willy, yoshfuji syzbot suspects this issue was fixed by commit: commit 43016d02cf6e46edfc4696452251d34bba0c0435 Author: Florian Westphal <fw@strlen.de> Date: Mon May 3 11:51:15 2021 +0000 netfilter: arptables: use pernet ops struct during unregister bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12dfdf47d00000 start commit: acf25aa6 Merge tag 'Smack-for-5.8' of git://github.com/csc.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=5263d9b5bce03c67 dashboard link: https://syzkaller.appspot.com/bug?extid=3eec59e770685e3dc879 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15bd4c1e100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1520c9de100000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: netfilter: arptables: use pernet ops struct during unregister For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [syzbot] BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc 2021-06-07 16:47 ` [syzbot] " syzbot @ 2021-06-07 16:58 ` Matthew Wilcox 0 siblings, 0 replies; 7+ messages in thread From: Matthew Wilcox @ 2021-06-07 16:58 UTC (permalink / raw) To: syzbot Cc: bjorn.andersson, brookebasile, coreteam, davem, dsahern, ducheng2, ebiggers, fw, gregkh, kadlec, kuba, linux-kernel, manivannan.sadhasivam, netdev, netfilter-devel, pablo, skhan, syzkaller-bugs, yoshfuji On Mon, Jun 07, 2021 at 09:47:07AM -0700, syzbot wrote: > syzbot suspects this issue was fixed by commit: > > commit 43016d02cf6e46edfc4696452251d34bba0c0435 > Author: Florian Westphal <fw@strlen.de> > Date: Mon May 3 11:51:15 2021 +0000 > > netfilter: arptables: use pernet ops struct during unregister Same wrong bisection. #syz fix: qrtr: Convert qrtr_ports from IDR to XArray ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-06-07 16:59 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-06-05 2:02 BUG: using smp_processor_id() in preemptible code in radix_tree_node_alloc syzbot 2020-06-05 3:55 ` Eric Biggers 2020-06-05 11:29 ` Matthew Wilcox 2020-06-05 16:11 ` Eric Biggers 2020-06-05 6:09 ` syzbot 2021-06-07 16:47 ` [syzbot] " syzbot 2021-06-07 16:58 ` Matthew Wilcox
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