general protection fault in proc_invalidate_siblings_dcache
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syzbot
Aug 14, 2021, 1:47:22 AM8/14/21
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 9a73fa375d58 Merge branch 'for-5.14-fixes' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1267396e300000
kernel config: https://syzkaller.appspot.com/x/.config?x=e3a20bae04b96ccd
dashboard link: https://syzkaller.appspot.com/bug?extid=56c8f1ff9d8233cb6532
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
userspace arch: i386
CC: [adob...@gmail.com ak...@linux-foundation.org gladkov...@gmail.com linux-...@vger.kernel.org linux-...@vger.kernel.org vi...@zeniv.linux.org.uk]
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+56c8f1...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xe0e0dce0e0e0e0e1: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0707070707070708-0x070707070707070f]
CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.14.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:hlist_unhashed include/linux/list.h:808 [inline]
RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:192 [inline]
RIP: 0010:proc_invalidate_siblings_dcache+0xca/0x610 fs/proc/inode.c:128
Code: 00 00 00 fc ff df 48 c1 e8 03 48 01 e8 48 89 44 24 10 e8 d9 be 86 ff 4c 89 ff e8 61 1a 3e 07 48 8d 7b 08 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 bd 04 00 00 4c 8b 63 08 4d 85 e4 74 5e e8 ae be
RSP: 0018:ffffc90000cd7760 EFLAGS: 00010207
RAX: 00e0e0e0e0e0e0e1 RBX: 0707070707070707 RCX: ffffffff815b9420
RDX: 1ffffffff1769162 RSI: 0000000000000004 RDI: 070707070707070f
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff5200019aede R11: 000000000000002a R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888000171c48 R15: ffffffff8bb48b00
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff01953760 CR3: 0000000029414000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
proc_sys_invalidate_dcache fs/proc/proc_sysctl.c:269 [inline]
start_unregistering fs/proc/proc_sysctl.c:294 [inline]
drop_sysctl_table+0x169/0x4e0 fs/proc/proc_sysctl.c:1643
unregister_sysctl_table fs/proc/proc_sysctl.c:1685 [inline]
unregister_sysctl_table+0xc2/0x190 fs/proc/proc_sysctl.c:1660
neigh_sysctl_unregister+0x5b/0x80 net/core/neighbour.c:3719
devinet_sysctl_unregister net/ipv4/devinet.c:2624 [inline]
inetdev_destroy net/ipv4/devinet.c:324 [inline]
inetdev_event+0xcfe/0x15d0 net/ipv4/devinet.c:1598
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2123
call_netdevice_notifiers_extack net/core/dev.c:2135 [inline]
call_netdevice_notifiers net/core/dev.c:2149 [inline]
unregister_netdevice_many+0x951/0x1790 net/core/dev.c:11093
sit_exit_batch_net+0x530/0x750 net/ipv6/sit.c:1949
ops_exit_list+0x10d/0x160 net/core/net_namespace.c:178
cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:595
process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Modules linked in:
---[ end trace e85f7b47135fffcb ]---
RIP: 0010:hlist_unhashed include/linux/list.h:808 [inline]
RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:192 [inline]
RIP: 0010:proc_invalidate_siblings_dcache+0xca/0x610 fs/proc/inode.c:128
Code: 00 00 00 fc ff df 48 c1 e8 03 48 01 e8 48 89 44 24 10 e8 d9 be 86 ff 4c 89 ff e8 61 1a 3e 07 48 8d 7b 08 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 bd 04 00 00 4c 8b 63 08 4d 85 e4 74 5e e8 ae be
RSP: 0018:ffffc90000cd7760 EFLAGS: 00010207
RAX: 00e0e0e0e0e0e0e1 RBX: 0707070707070707 RCX: ffffffff815b9420
RDX: 1ffffffff1769162 RSI: 0000000000000004 RDI: 070707070707070f
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff5200019aede R11: 000000000000002a R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888000171c48 R15: ffffffff8bb48b00
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff01953760 CR3: 0000000029414000 CR4: 00000000001526f0
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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 9a73fa375d58 Merge branch 'for-5.14-fixes' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1267396e300000
kernel config: https://syzkaller.appspot.com/x/.config?x=e3a20bae04b96ccd
dashboard link: https://syzkaller.appspot.com/bug?extid=56c8f1ff9d8233cb6532
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
userspace arch: i386
CC: [adob...@gmail.com ak...@linux-foundation.org gladkov...@gmail.com linux-...@vger.kernel.org linux-...@vger.kernel.org vi...@zeniv.linux.org.uk]
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+56c8f1...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xe0e0dce0e0e0e0e1: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0707070707070708-0x070707070707070f]
CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.14.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:hlist_unhashed include/linux/list.h:808 [inline]
RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:192 [inline]
RIP: 0010:proc_invalidate_siblings_dcache+0xca/0x610 fs/proc/inode.c:128
Code: 00 00 00 fc ff df 48 c1 e8 03 48 01 e8 48 89 44 24 10 e8 d9 be 86 ff 4c 89 ff e8 61 1a 3e 07 48 8d 7b 08 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 bd 04 00 00 4c 8b 63 08 4d 85 e4 74 5e e8 ae be
RSP: 0018:ffffc90000cd7760 EFLAGS: 00010207
RAX: 00e0e0e0e0e0e0e1 RBX: 0707070707070707 RCX: ffffffff815b9420
RDX: 1ffffffff1769162 RSI: 0000000000000004 RDI: 070707070707070f
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff5200019aede R11: 000000000000002a R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888000171c48 R15: ffffffff8bb48b00
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff01953760 CR3: 0000000029414000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
proc_sys_invalidate_dcache fs/proc/proc_sysctl.c:269 [inline]
start_unregistering fs/proc/proc_sysctl.c:294 [inline]
drop_sysctl_table+0x169/0x4e0 fs/proc/proc_sysctl.c:1643
unregister_sysctl_table fs/proc/proc_sysctl.c:1685 [inline]
unregister_sysctl_table+0xc2/0x190 fs/proc/proc_sysctl.c:1660
neigh_sysctl_unregister+0x5b/0x80 net/core/neighbour.c:3719
devinet_sysctl_unregister net/ipv4/devinet.c:2624 [inline]
inetdev_destroy net/ipv4/devinet.c:324 [inline]
inetdev_event+0xcfe/0x15d0 net/ipv4/devinet.c:1598
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2123
call_netdevice_notifiers_extack net/core/dev.c:2135 [inline]
call_netdevice_notifiers net/core/dev.c:2149 [inline]
unregister_netdevice_many+0x951/0x1790 net/core/dev.c:11093
sit_exit_batch_net+0x530/0x750 net/ipv6/sit.c:1949
ops_exit_list+0x10d/0x160 net/core/net_namespace.c:178
cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:595
process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Modules linked in:
---[ end trace e85f7b47135fffcb ]---
RIP: 0010:hlist_unhashed include/linux/list.h:808 [inline]
RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:192 [inline]
RIP: 0010:proc_invalidate_siblings_dcache+0xca/0x610 fs/proc/inode.c:128
Code: 00 00 00 fc ff df 48 c1 e8 03 48 01 e8 48 89 44 24 10 e8 d9 be 86 ff 4c 89 ff e8 61 1a 3e 07 48 8d 7b 08 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 bd 04 00 00 4c 8b 63 08 4d 85 e4 74 5e e8 ae be
RSP: 0018:ffffc90000cd7760 EFLAGS: 00010207
RAX: 00e0e0e0e0e0e0e1 RBX: 0707070707070707 RCX: ffffffff815b9420
RDX: 1ffffffff1769162 RSI: 0000000000000004 RDI: 070707070707070f
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff5200019aede R11: 000000000000002a R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888000171c48 R15: ffffffff8bb48b00
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff01953760 CR3: 0000000029414000 CR4: 00000000001526f0
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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Nov 8, 2021, 12:37:14 AM11/8/21
to syzkaller-upst...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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