syzbot


WARNING in __kernel_read (2)
Status: upstream: reported C repro on 2020/09/26 02:58
Reported-by: syzbot+51177e4144d764827c45@syzkaller.appspotmail.com
First crash: 612d, last: 220d

Cause bisection: failed (bisect log)
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __kernel_read C done 60 624d 683d 17/22 fixed on 2020/09/16 22:51

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7028 at fs/read_write.c:440 __kernel_read+0x80e/0xa10 fs/read_write.c:440
Modules linked in:
CPU: 0 PID: 7028 Comm: syz-executor458 Not tainted 5.9.0-rc5-next-20200921-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__kernel_read+0x80e/0xa10 fs/read_write.c:440
Code: 8a e8 c6 97 12 02 31 ff 89 c3 89 c6 e8 2b ac b3 ff 85 db 0f 85 6e 3b 55 06 49 c7 c5 ea ff ff ff e9 bd fd ff ff e8 b2 af b3 ff <0f> 0b 49 c7 c5 ea ff ff ff e9 aa fd ff ff e8 9f af b3 ff 48 89 ea
RSP: 0018:ffffc90006027b38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff81c1715b
RDX: ffff888091eba480 RSI: ffffffff81c1787e RDI: 0000000000000005
RBP: 000000000008801c R08: 0000000000000001 R09: ffff888091ebad88
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a16710c0
R13: 0000000000000001 R14: ffffc90006027d08 R15: ffff8880a1671144
FS:  00007efcd60f1700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 00000000a2dc5000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kernel_read+0x52/0x70 fs/read_write.c:471
 kernel_read_file fs/exec.c:989 [inline]
 kernel_read_file+0x2e5/0x620 fs/exec.c:952
 kernel_read_file_from_fd+0x56/0xa0 fs/exec.c:1076
 __do_sys_finit_module+0xe6/0x190 kernel/module.c:4066
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x44a639
Code: e8 bc b4 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 4b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007efcd60f0db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 000000000044a639
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000006dbc60 R08: 00007efcd60f1700 R09: 0000000000000000
R10: 00007efcd60f1700 R11: 0000000000000246 R12: 00000000006dbc6c
R13: 00007ffd3d8928ef R14: 00007efcd60f19c0 R15: 0000000000000001

Crashes (292):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2020/09/22 02:56 linux-next b10b8ad86211 9e1fa68e .config log report syz C
ci-upstream-kasan-gce-root 2021/10/19 03:12 upstream 519d81956ee2 24dc29db .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/10/16 22:39 upstream 304040fb4909 0c5d9412 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/10/16 08:15 upstream 8fe31e0995f0 0c5d9412 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/10/16 06:02 upstream 8fe31e0995f0 0c5d9412 .config log report info WARNING in __kernel_read
ci-qemu-upstream 2021/10/16 03:41 upstream 8fe31e0995f0 0c5d9412 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/10/14 10:57 upstream 348949d9a444 5462d470 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/10/14 10:54 upstream 348949d9a444 5462d470 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/10/14 02:10 upstream 348949d9a444 5462d470 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/10/11 16:42 upstream 64570fbc14f8 838e7e2c .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/10/09 00:36 upstream 741668ef7832 efe0f24d .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/10/03 12:06 upstream 7b66f4393ad4 db0f5787 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/10/03 10:30 upstream 7b66f4393ad4 db0f5787 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/09/20 04:02 upstream 20621d2f27a0 70b76c1d .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/09/11 23:26 upstream c605c39677b9 5ae8508a .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/09/11 18:08 upstream 926de8c4326c 5ae8508a .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/09/10 17:26 upstream bf9f243f23e6 5ae8508a .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/09/10 16:01 upstream bf9f243f23e6 5ae8508a .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/09/10 08:59 upstream bf9f243f23e6 e2776ee4 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/09/01 05:17 upstream b91db6a0b52e 7eb7e152 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/31 02:21 upstream 7d2a07b76933 8f58a0ef .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/26 15:21 upstream 73f3af7b4611 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/26 13:49 upstream 73f3af7b4611 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/25 11:53 upstream 6e764bcd1cf7 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/08/24 15:35 upstream d5ae8d7f85b7 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/23 20:52 upstream e22ce8eb631b b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/22 22:04 upstream 1bdc3d5be7e1 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/22 19:04 upstream 9ff50bf2f2ff b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/22 12:37 upstream 9ff50bf2f2ff b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/19 02:51 upstream 614cb2751d31 a2fe1cb5 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/18 17:36 upstream 614cb2751d31 a2fe1cb5 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/17 08:44 upstream a2824f19e606 33c26cb7 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/16 15:34 upstream 7c60610d4767 33c26cb7 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/08/16 15:32 upstream 7c60610d4767 33c26cb7 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/16 14:26 upstream 7c60610d4767 33c26cb7 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-smack-root 2021/08/16 00:54 upstream 0aa78d17099b 2489ab88 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/11 10:25 upstream 761c6d7ec820 6972b106 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/11 07:34 upstream 9e723c5380c6 6972b106 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-root 2021/08/06 22:39 upstream 902e7f373fff f9e341e3 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2021/08/06 15:44 upstream 902e7f373fff f9e341e3 .config log report info WARNING in __kernel_read
ci-qemu-upstream-386 2021/06/14 16:35 upstream 009c9aa5be65 1ba81399 .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/10/08 22:44 linux-next 683f29b781ae efe0f24d .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/10/08 22:44 linux-next 683f29b781ae efe0f24d .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/10/03 09:07 linux-next a25006a77348 db0f5787 .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/09/20 01:41 linux-next 9004fd387338 70b76c1d .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/09/08 20:28 linux-next 999569d59a0a e2776ee4 .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/08/23 20:51 linux-next 46debfec12b4 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/08/22 13:38 linux-next 86ed57fd8c93 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/08/21 06:25 linux-next 86ed57fd8c93 b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/08/19 21:42 linux-next 33e65b1f975c b599f2fc .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/08/16 18:36 linux-next b9011c7e671d 33c26cb7 .config log report info WARNING in __kernel_read
ci-upstream-linux-next-kasan-gce-root 2021/08/06 18:46 linux-next 8d4b477da1a8 f9e341e3 .config log report info WARNING in __kernel_read
ci-upstream-kasan-gce-selinux-root 2020/12/13 06:08 upstream 7b1b868e1d91 bca53db9 .config log report info