syzbot


WARNING in udf_truncate_extents

Status: upstream: reported C repro on 2020/10/12 13:20
Labels: udf (incorrect?)
Reported-by: syzbot+43fc5ba6dcb33e3261ca@syzkaller.appspotmail.com
First crash: 967d, last: 1h45m

Cause bisection: introduced by (bisect log) :
commit 2004bfdef945fe55196db6b9cdf321fbc75bb0de
Author: Bart Van Assche <bvanassche@acm.org>
Date: Tue Mar 10 04:26:21 2020 +0000

  null_blk: Fix the null_add_dev() error path

Crash: WARNING in udf_truncate_extents (log)
Repro: syz .config

Fix bisection: failed (error log, bisect log)
Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly udf report (May 2023) 0 (1) 2023/05/06 08:19
[syzbot] Monthly udf report 0 (1) 2023/04/05 08:52
WARNING in udf_truncate_extents 1 (5) 2022/10/10 16:07
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in udf_truncate_extents origin:lts-only C 46 9h15m 79d 0/3 upstream: reported C repro on 2023/03/19 00:16
linux-4.14 WARNING in udf_truncate_extents C error 4 251d 462d 0/1 upstream: reported C repro on 2022/03/01 11:21
linux-4.19 WARNING in udf_truncate_extents udf C error 245 96d 621d 0/1 upstream: reported C repro on 2021/09/23 06:31
linux-5.15 WARNING in udf_truncate_extents origin:lts-only C 36 14h54m 79d 0/3 upstream: reported C repro on 2023/03/18 20:24

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5447 at fs/udf/truncate.c:208 udf_truncate_extents+0x10a8/0x12c0
Modules linked in:
CPU: 1 PID: 5447 Comm: syz-executor128 Not tainted 6.3.0-rc3-syzkaller-00021-ga1effab7a3a3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:udf_truncate_extents+0x10a8/0x12c0 fs/udf/truncate.c:208
Code: 0f 85 1e 02 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 35 96 8c fe 41 be fb ff ff ff eb 86 e8 28 96 8c fe <0f> 0b eb 87 48 8d 8c 24 60 01 00 00 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc900043eeea0 EFLAGS: 00010293
RAX: ffffffff82fdd6f8 RBX: dffffc0000000000 RCX: ffff8880208fd7c0
RDX: 0000000000000000 RSI: 0000000001f91dff RDI: 0000000000000000
RBP: ffffc900043ef090 R08: ffffffff82fdcaf5 R09: ffffffff82fba594
R10: 0000000000000002 R11: ffff8880208fd7c0 R12: ffff888076762018
R13: 0000000001f91dff R14: 0000000000000000 R15: 00000000000000ff
FS:  00007f01320ac700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020045000 CR3: 000000002a1a8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_do_extend_file+0xe4a/0x11e0 fs/udf/inode.c:613
 inode_getblk fs/udf/inode.c:822 [inline]
 udf_map_block+0x16c0/0x4ff0 fs/udf/inode.c:450
 __udf_get_block+0x126/0x410 fs/udf/inode.c:464
 __block_write_begin_int+0x548/0x1a50 fs/buffer.c:2034
 udf_page_mkwrite+0x5ae/0x960 fs/udf/file.c:69
 do_page_mkwrite+0x1a1/0x600 mm/memory.c:2925
 wp_page_shared mm/memory.c:3274 [inline]
 do_wp_page+0x501/0x3620 mm/memory.c:3356
 handle_pte_fault mm/memory.c:4927 [inline]
 __handle_mm_fault mm/memory.c:5051 [inline]
 handle_mm_fault+0x23a0/0x51c0 mm/memory.c:5197
 do_user_addr_fault arch/x86/mm/fault.c:1407 [inline]
 handle_page_fault arch/x86/mm/fault.c:1498 [inline]
 exc_page_fault+0x5b1/0x7c0 arch/x86/mm/fault.c:1554
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f013a43ecc1
Code: 0a 00 0f 87 cc 00 00 00 0f 10 06 0f 10 4e 10 0f 10 56 20 0f 10 5e 30 48 83 c6 40 48 83 ea 40 0f 29 07 0f 29 4f 10 0f 29 57 20 <0f> 29 5f 30 48 83 c7 40 48 83 fa 40 77 d0 0f 11 29 0f 11 71 f0 0f
RSP: 002b:00007f01320ac2f8 EFLAGS: 00010202
RAX: 000000002005d540 RBX: 00007f013a4e77c0 RCX: 000000002007c6c7
RDX: 00000000000066c7 RSI: 00007f013a4ad7a8 RDI: 0000000020075fd0
RBP: 00007f013a4b3e70 R08: fffffffffffffff0 R09: 0000000000000012
R10: 00007f01320ac088 R11: 000000002005d540 R12: 0030656c69662f2e
R13: 6f6e67693d646975 R14: 6c75662f7665642f R15: 00007f013a4e77c8
 </TASK>

Crashes (616):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/03/22 21:53 upstream a1effab7a3a3 d846e076 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci-upstream-kasan-gce-smack-root WARNING in udf_truncate_extents
2022/12/29 13:23 upstream 1b929c02afd3 44712fbc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/12/13 09:53 upstream 3a28c2c89f4b 67be1ae7 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/20 15:17 upstream 55be6084c8e0 b31320fc .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/20 15:05 upstream 55be6084c8e0 b31320fc .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/20 14:10 upstream 55be6084c8e0 b31320fc .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/20 14:00 upstream 55be6084c8e0 b31320fc .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/12 08:54 upstream 493ffd6605b2 02b6492e .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 22:28 upstream 493ffd6605b2 5bcf0c31 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 21:57 upstream 493ffd6605b2 5bcf0c31 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 21:36 upstream 493ffd6605b2 5bcf0c31 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 21:15 upstream 493ffd6605b2 5bcf0c31 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 20:15 upstream 493ffd6605b2 5bcf0c31 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 16:07 upstream 4899a36f91a9 aea5da89 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/10 16:07 upstream 4899a36f91a9 aea5da89 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in udf_truncate_extents
2022/11/20 01:00 linux-next 15f3bff12cf6 5bb70014 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2022/11/20 00:38 linux-next 15f3bff12cf6 5bb70014 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2022/11/19 23:24 linux-next 15f3bff12cf6 5bb70014 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2022/11/19 23:01 linux-next 15f3bff12cf6 5bb70014 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2022/10/10 16:14 linux-next aaa11ce2ffc8 aea5da89 .config strace log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2022/10/10 20:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 aea5da89 .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-gce-arm64 WARNING in udf_truncate_extents
2022/10/10 20:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 aea5da89 .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-gce-arm64 WARNING in udf_truncate_extents
2022/10/10 19:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 aea5da89 .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-gce-arm64 WARNING in udf_truncate_extents
2022/10/10 18:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 aea5da89 .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-gce-arm64 WARNING in udf_truncate_extents
2022/10/10 16:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 aea5da89 .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci-upstream-gce-arm64 WARNING in udf_truncate_extents
2022/11/15 22:16 upstream e01d50cbd6ee 97de9cfc .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/20 12:12 upstream 55be6084c8e0 b31320fc .config console log report syz [disk image] [vmlinux] [mounted in repro #1] [mounted in repro #2] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2022/10/10 11:54 upstream 4899a36f91a9 aea5da89 .config console log report syz [disk image] [vmlinux] [mounted in repro #1] [mounted in repro #2] ci2-upstream-fs WARNING in udf_truncate_extents
2022/10/10 02:16 upstream a6afa4199d3d aea5da89 .config console log report syz [disk image] [vmlinux] [mounted in repro #1] [mounted in repro #2] ci2-upstream-fs WARNING in udf_truncate_extents
2022/06/25 20:06 upstream 8c23f235a6a8 a371c43c .config console log report syz ci-qemu-upstream WARNING in udf_truncate_extents
2022/11/19 21:01 linux-next 15f3bff12cf6 5bb70014 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2022/11/19 13:47 linux-next 15f3bff12cf6 5bb70014 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2020/10/11 21:25 upstream da690031a5d6 4a77ae0b .config console log report syz ci-upstream-kasan-gce-smack-root
2023/06/06 18:30 upstream a4d7d7011219 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/06 13:48 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/06 06:49 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/06 00:20 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in udf_truncate_extents
2023/06/05 19:01 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/05 17:09 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in udf_truncate_extents
2023/06/05 09:11 upstream 9561de3a55be a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/05 05:56 upstream 6f64a5ebe1dc a4ae4f42 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in udf_truncate_extents
2023/06/04 07:14 upstream e5282a7d8f6b a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/03 12:47 upstream 4ecd704a4c51 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/02 09:39 upstream 1874a42a7d74 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in udf_truncate_extents
2023/06/02 09:39 upstream 1874a42a7d74 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in udf_truncate_extents
2023/06/02 07:55 upstream 1874a42a7d74 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/02 05:45 upstream 1874a42a7d74 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2023/06/01 19:14 upstream 929ed21dfdb6 babc4389 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/31 05:46 upstream afead42fdfca 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2023/05/30 14:19 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/30 04:49 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/29 21:17 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/29 07:59 upstream 7877cb91f108 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/28 20:39 upstream 416839029e38 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/28 15:42 upstream 416839029e38 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/27 19:11 upstream 49572d536129 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/27 05:40 upstream 91a304340a22 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in udf_truncate_extents
2023/05/27 03:42 upstream 91a304340a22 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2023/05/26 23:56 upstream 0d85b27b0cc6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in udf_truncate_extents
2023/05/26 20:36 upstream 0d85b27b0cc6 b0e6aca7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in udf_truncate_extents
2023/05/26 19:31 upstream 0d85b27b0cc6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/26 16:12 upstream 9db898594c54 b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/26 10:41 upstream 9db898594c54 b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/26 07:12 upstream 9db898594c54 b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/25 22:04 upstream 933174ae28ba 0513b3e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/25 12:57 upstream 933174ae28ba 54259e6c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in udf_truncate_extents
2023/05/25 11:39 upstream 933174ae28ba 0513b3e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/24 18:33 upstream 9d646009f65d 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/24 03:24 upstream 27e462c8fad4 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/23 19:21 upstream ae8373a5add4 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/23 15:44 upstream ae8373a5add4 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/22 16:48 upstream 44c026a73be8 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/21 20:57 upstream e2065b8c1b01 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/21 08:40 upstream 0dd2a6fb1e34 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in udf_truncate_extents
2023/05/20 19:18 upstream d635f6cc934b 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/20 14:41 upstream d635f6cc934b 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/05/19 08:57 upstream 2d1bcbc6cd70 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in udf_truncate_extents
2023/05/19 02:04 upstream 2d1bcbc6cd70 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in udf_truncate_extents
2023/06/06 02:46 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in udf_truncate_extents
2023/05/26 22:55 upstream 0d85b27b0cc6 b0e6aca7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in udf_truncate_extents
2023/06/03 02:31 linux-next 715abedee4cd a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2023/05/29 04:26 linux-next 715abedee4cd cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2023/05/27 00:56 linux-next 715abedee4cd cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2023/05/26 14:15 linux-next 715abedee4cd b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2023/05/25 14:23 linux-next 715abedee4cd 0513b3e6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2023/05/21 03:16 linux-next 715abedee4cd 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in udf_truncate_extents
2023/05/17 03:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f1fcbaa18b28 11c89444 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in udf_truncate_extents
* Struck through repros no longer work on HEAD.