All of lore.kernel.org
 help / color / mirror / Atom feed
From: syzbot <syzbot+5bdf123b3320cc241813@syzkaller.appspotmail.com>
To: bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com,
	linux-kernel@vger.kernel.org, mbenes@suse.cz, mingo@redhat.com,
	peterz@infradead.org, shile.zhang@linux.alibaba.com,
	syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
	x86@kernel.org
Subject: BUG: stack guard page was hit in unwind_next_frame (2)
Date: Fri, 24 Jul 2020 12:23:19 -0700	[thread overview]
Message-ID: <000000000000cb6afe05ab34e77e@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    5714ee50 copy_xstate_to_kernel: Fix typo which caused GDB ..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=116964c8900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f87a5e4232fdb267
dashboard link: https://syzkaller.appspot.com/bug?extid=5bdf123b3320cc241813
compiler:       gcc (GCC) 10.1.0-syz 20200507
userspace arch: i386

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5bdf123b3320cc241813@syzkaller.appspotmail.com

BUG: stack guard page was hit at 00000000e936347d (stack is 00000000047987e0..00000000cd28eac3)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 24253 Comm: syz-executor.5 Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unwind_next_frame+0x1e/0x1f90 arch/x86/kernel/unwind_orc.c:424
Code: 48 8b 0c 24 e9 72 ff ff ff 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 ff 41 56 41 55 41 54 55 53 48 81 ec a0 00 00 00 <48> c7 44 24 40 b3 8a b5 41 48 8d 5c 24 40 48 c7 44 24 48 98 a5 67
RSP: 0018:ffffc90008367f68 EFLAGS: 00010282
RAX: dffffc0000000000 RBX: ffffc90008368118 RCX: ffffc90008368120
RDX: ffffc90008370000 RSI: 1ffff9200106d014 RDI: ffffc90008368090
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffc90008368090
R10: fffff5200106d01d R11: 0000000000000000 R12: fffff5200106d014
R13: fffff5200106d013 R14: ffffc900083680c8 R15: ffffc90008368090
FS:  0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5cfeb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffc90008367f58 CR3: 00000000524e1000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __unwind_start+0x4dd/0x7c0 arch/x86/kernel/unwind_orc.c:698
 unwind_start arch/x86/include/asm/unwind.h:60 [inline]
 arch_stack_walk+0x5e/0xf0 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123
 save_stack+0x1b/0x40 mm/kasan/common.c:48
 set_track mm/kasan/common.c:56 [inline]
 __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:494
 slab_post_alloc_hook mm/slab.h:586 [inline]
 slab_alloc_node mm/slab.c:3263 [inline]
 kmem_cache_alloc_node+0x130/0x3c0 mm/slab.c:3575
 __alloc_skb+0x71/0x550 net/core/skbuff.c:198
 alloc_skb include/linux/skbuff.h:1083 [inline]
 nlmsg_new include/net/netlink.h:940 [inline]
 rtmsg_ifinfo_build_skb+0x72/0x1a0 net/core/rtnetlink.c:3701
 rtmsg_ifinfo_event net/core/rtnetlink.c:3737 [inline]
 rtmsg_ifinfo_event net/core/rtnetlink.c:3728 [inline]
 rtnetlink_event+0x123/0x1d0 net/core/rtnetlink.c:5511
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
 bond_compute_features+0x502/0xa00 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x81f/0xb30 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 netdev_features_change net/core/dev.c:1443 [inline]
 netdev_sync_lower_features net/core/dev.c:9056 [inline]
 __netdev_update_features+0x88d/0x1360 net/core/dev.c:9187
 netdev_change_features+0x61/0xb0 net/core/dev.c:9259
Lost 528 message(s)!
---[ end trace 2343dddd6fe8f1bd ]---
RIP: 0010:unwind_next_frame+0x1e/0x1f90 arch/x86/kernel/unwind_orc.c:424
Code: 48 8b 0c 24 e9 72 ff ff ff 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 ff 41 56 41 55 41 54 55 53 48 81 ec a0 00 00 00 <48> c7 44 24 40 b3 8a b5 41 48 8d 5c 24 40 48 c7 44 24 48 98 a5 67
RSP: 0018:ffffc90008367f68 EFLAGS: 00010282
RAX: dffffc0000000000 RBX: ffffc90008368118 RCX: ffffc90008368120
RDX: ffffc90008370000 RSI: 1ffff9200106d014 RDI: ffffc90008368090
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffc90008368090
R10: fffff5200106d01d R11: 0000000000000000 R12: fffff5200106d014
R13: fffff5200106d013 R14: ffffc900083680c8 R15: ffffc90008368090
FS:  0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5cfeb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffc90008367f58 CR3: 00000000524e1000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
This report 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 issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

                 reply	other threads:[~2020-07-24 19:23 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=000000000000cb6afe05ab34e77e@google.com \
    --to=syzbot+5bdf123b3320cc241813@syzkaller.appspotmail.com \
    --cc=bp@alien8.de \
    --cc=hpa@zytor.com \
    --cc=jpoimboe@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mbenes@suse.cz \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=shile.zhang@linux.alibaba.com \
    --cc=syzkaller-bugs@googlegroups.com \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.