syzbot


WARNING in iov_iter_revert (5)

Status: upstream: reported C repro on 2024/08/20 14:21
Subsystems: ntfs3
[Documentation on labels]
Reported-by: syzbot+1e5f71cac2c1db825478@syzkaller.appspotmail.com
First crash: 49d, last: 35d
Cause bisection: failed (error log, bisect log)
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ntfs3?] WARNING in iov_iter_revert (5) 0 (1) 2024/08/20 14:21
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in iov_iter_revert net C 74 2270d 2336d 8/28 fixed on 2018/08/07 13:43
upstream WARNING in iov_iter_revert (2) serial C done 9 1325d 1326d 20/28 fixed on 2021/04/09 19:46
linux-6.1 WARNING in iov_iter_revert origin:lts-only C done 1 363d 418d 0/3 upstream: reported C repro on 2023/08/13 18:12
upstream WARNING in iov_iter_revert (4) ntfs3 C done error 4 432d 484d 0/28 auto-obsoleted due to no activity on 2023/11/08 23:39
upstream WARNING in iov_iter_revert (3) ntfs3 C error error 26 620d 679d 0/28 auto-obsoleted due to no activity on 2023/05/23 03:07
linux-5.15 WARNING in iov_iter_revert origin:lts-only C done 1 448d 464d 0/3 upstream: reported C repro on 2023/06/28 09:07
Last patch testing requests (2)
Created Duration User Patch Repo Result
2024/08/30 21:45 17m retest repro upstream report log
2024/08/30 21:45 15m retest repro upstream report log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5875 at lib/iov_iter.c:552 iov_iter_revert+0x34d/0x390 lib/iov_iter.c:552
Modules linked in:
CPU: 0 UID: 0 PID: 5875 Comm: syz-executor332 Not tainted 6.11.0-rc3-syzkaller-00156-gd7a5aa4b3c00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:iov_iter_revert+0x34d/0x390 lib/iov_iter.c:552
Code: 48 89 df 48 89 cd e8 f2 ee 50 fd 48 89 e9 48 89 0b 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 34 cd ec fc 90 <0f> 0b 90 eb e2 e8 29 cd ec fc eb db 44 89 e9 80 e1 07 38 c1 0f 8c
RSP: 0018:ffffc90004d0fbe0 EFLAGS: 00010293
RAX: ffffffff84a6bd2c RBX: ffffffffffffe00a RCX: ffff888023519e00
RDX: 0000000000000000 RSI: ffffffffffffe00a RDI: 000000007ffff000
RBP: 0000000000002000 R08: ffffffff84a6ba1d R09: 1ffffffff1fed4e5
R10: dffffc0000000000 R11: fffffbfff1fed4e6 R12: 1ffff920009a1fb1
R13: ffffc90004d0fd70 R14: ffffc90004d0fd70 R15: 0000000000000000
FS:  00007f1d02fd56c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000000a CR3: 0000000064990000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 generic_file_read_iter+0x2d0/0x430 mm/filemap.c:2789
 new_sync_read fs/read_write.c:395 [inline]
 vfs_read+0x9bd/0xbc0 fs/read_write.c:476
 ksys_read+0x1a0/0x2c0 fs/read_write.c:619
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1d0302c829
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 1f 00 00 90 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1d02fd5218 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f1d030cf728 RCX: 00007f1d0302c829
RDX: 0000000000002000 RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00007f1d030cf720 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1d0309aaac
R13: 00007f1d03099fe0 R14: 0031656c69662f2e R15: 0030656c69662f2e
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/16 21:16 upstream d7a5aa4b3c00 e1c76ab2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci2-upstream-fs WARNING in iov_iter_revert
2024/08/16 16:08 upstream d7a5aa4b3c00 e1c76ab2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in iov_iter_revert
2024/08/16 14:16 upstream d7a5aa4b3c00 e1c76ab2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in iov_iter_revert
* Struck through repros no longer work on HEAD.