syzbot


kernel BUG at fs/reiserfs/lock.c:LINE!
Status: auto-closed as invalid on 2019/10/19 15:58
Reported-by: syzbot+66d2c2155ece8b6d3fc0@syzkaller.appspotmail.com
First crash: 1416d, last: 1130d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 kernel BUG at fs/reiserfs/lock.c:LINE! 1 842d 842d 0/1 auto-closed as invalid on 2020/06/02 22:04
linux-4.19 kernel BUG at fs/reiserfs/lock.c:LINE! 5 965d 1131d 0/1 auto-closed as invalid on 2020/02/01 11:28
linux-4.19 kernel BUG at fs/reiserfs/lock.c:LINE! (2) C done 2 826d 826d 1/1 fixed on 2020/03/21 18:15

Sample crash report:
RAX: ffffffffffffffda RBX: 00007f9f903e1b40 RCX: 000000000045b69a
RDX: 00007f9f903e1ae0 RSI: 00000000200002c0 RDI: 00007f9f903e1b00
RBP: 0000000000000000 R08: 00007f9f903e1b40 R09: 00007f9f903e1ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004
R13: 00000000004c782d R14: 00000000004dd880 R15: 0000000000000003
REISERFS warning (device loop1):  reiserfs_fill_super: Cannot allocate memory for journal device name
------------[ cut here ]------------
kernel BUG at fs/reiserfs/lock.c:44!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10696 Comm: syz-executor.1 Not tainted 5.1.0-rc6 #79
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:reiserfs_write_unlock+0xeb/0x110 fs/reiserfs/lock.c:44
Code: 5d c3 e8 98 fb 85 ff 48 8d 7b 28 48 c7 83 a8 00 00 00 00 00 00 00 e8 b4 1d 25 05 e8 7f fb 85 ff 5b 41 5c 5d c3 e8 75 fb 85 ff <0f> 0b e8 5e 11 be ff eb a1 e8 77 11 be ff e9 33 ff ff ff e8 6d 11
RSP: 0018:ffff888091f57aa8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff888086304d80 RCX: ffffc90008010000
RDX: 0000000000040000 RSI: ffffffff81ea917b RDI: ffff888086304e28
RBP: ffff888091f57ab8 R08: 0000000000000065 R09: ffffed1015d25011
R10: ffffed1015d25010 R11: ffff8880ae928087 R12: 00000000ffffffea
R13: ffff888057ccc900 R14: ffff888091f57c58 R15: ffff888086304d80
FS:  00007f9f903e2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000070d158 CR3: 000000008dd37000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_fill_super+0x2b43/0x2ea0 fs/reiserfs/super.c:2219
 mount_bdev+0x307/0x3c0 fs/super.c:1346
 get_super_block+0x35/0x40 fs/reiserfs/super.c:2605
 legacy_get_tree+0xf2/0x200 fs/fs_context.c:584
 vfs_get_tree+0x123/0x450 fs/super.c:1481
 do_new_mount fs/namespace.c:2622 [inline]
 do_mount+0x1436/0x2c40 fs/namespace.c:2942
 ksys_mount+0xdb/0x150 fs/namespace.c:3151
 __do_sys_mount fs/namespace.c:3165 [inline]
 __se_sys_mount fs/namespace.c:3162 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3162
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b69a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 2d 8e fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0a 8e fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f9f903e1a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9f903e1b40 RCX: 000000000045b69a
RDX: 00007f9f903e1ae0 RSI: 00000000200002c0 RDI: 00007f9f903e1b00
RBP: 0000000000000000 R08: 00007f9f903e1b40 R09: 00007f9f903e1ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004
R13: 00000000004c782d R14: 00000000004dd880 R15: 0000000000000003
Modules linked in:
---[ end trace b38a85052d4516b8 ]---
RIP: 0010:reiserfs_write_unlock+0xeb/0x110 fs/reiserfs/lock.c:44
Code: 5d c3 e8 98 fb 85 ff 48 8d 7b 28 48 c7 83 a8 00 00 00 00 00 00 00 e8 b4 1d 25 05 e8 7f fb 85 ff 5b 41 5c 5d c3 e8 75 fb 85 ff <0f> 0b e8 5e 11 be ff eb a1 e8 77 11 be ff e9 33 ff ff ff e8 6d 11
RSP: 0018:ffff888091f57aa8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff888086304d80 RCX: ffffc90008010000
RDX: 0000000000040000 RSI: ffffffff81ea917b RDI: ffff888086304e28
RBP: ffff888091f57ab8 R08: 0000000000000065 R09: ffffed1015d25011
R10: ffffed1015d25010 R11: ffff8880ae928087 R12: 00000000ffffffea
R13: ffff888057ccc900 R14: ffff888091f57c58 R15: ffff888086304d80
FS:  00007f9f903e2700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000070d158 CR3: 000000008dd37000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (13):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/04/22 15:58 upstream 085b7755808a 0a77c33c .config log report
ci-upstream-kasan-gce-root 2019/03/02 14:37 upstream a215ce8f0e00 1c0e457a .config log report
ci-upstream-kasan-gce-root 2019/02/21 17:00 upstream f6163d67cc31 3133098b .config log report
ci-upstream-kasan-gce-smack-root 2019/02/10 02:15 upstream e8b50608f666 d75f7686 .config log report
ci-upstream-kasan-gce-root 2019/02/08 22:28 upstream 74e96711e337 fa6c7b70 .config log report
ci-upstream-kasan-gce-root 2019/02/08 17:52 upstream 74e96711e337 fa6c7b70 .config log report
ci-upstream-kasan-gce-root 2019/02/07 18:28 upstream b0314565da2b aa4feb03 .config log report
ci-upstream-kasan-gce-root 2019/02/02 19:17 upstream cd984a5be215 c198d5dd .config log report
ci-upstream-kasan-gce-root 2018/12/03 14:33 upstream 2595646791c3 819002b0 .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/07 14:58 upstream fb1c592cf4c9 8b311eaf .config log report
ci-upstream-kasan-gce-selinux-root 2018/10/06 15:32 upstream 091a1eaa0e30 8b311eaf .config log report
ci-upstream-linux-next-kasan-gce-root 2018/07/11 09:21 linux-next 98be45067040 2e0e3130 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/07/10 13:59 linux-next 3951bd9fe3e2 9fa03fa5 .config log report