WARNING in iov_iter

Date	Name	Commit	Repro	Result
2023/08/13	linux-6.1.y (ToT)	1321ab403b38	C	[report] WARNING in iov_iter_revert
2023/08/13	upstream (ToT)	4c75bf7e4a0e	C	Didn't crash

Date

Name

Commit

Repro

Result

2023/08/13

linux-6.1.y (ToT)

1321ab403b38

[report] WARNING in iov_iter_revert

2023/08/13

upstream (ToT)

4c75bf7e4a0e

Didn't crash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING in iov_iter_revert net	C			74	2112d	2179d	8/26	fixed on 2018/08/07 13:43
upstream	WARNING in iov_iter_revert (2) serial	C	done		9	1167d	1169d	20/26	fixed on 2021/04/09 19:46
upstream	WARNING in iov_iter_revert (4) ntfs3	C	done	error	4	275d	327d	0/26	auto-obsoleted due to no activity on 2023/11/08 23:39
upstream	WARNING in iov_iter_revert (3) ntfs3	C	error	error	26	463d	522d	0/26	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	291d	307d	0/3	upstream: reported C repro on 2023/06/28 09:07

Created	Duration	User	Patch	Repo	Result
2023/10/09 08:28	4h36m	fix candidate		upstream	job log (1)
2023/10/07 08:38	1h03m	bisect fix		linux-6.1.y	job log (0) log

Created

Duration

User

Patch

Repo

Result

2023/10/09 08:28

4h36m

fix candidate

upstream

job log (1)

2023/10/07 08:38

1h03m

bisect fix

linux-6.1.y

job log (0) log

Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdb17a94c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007ffdb17a94f0 RCX: 00007fdba92b91e9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 0000000000000002 R08: 00007ffdb17a9266 R09: 00007ffdb17a9510 R10: 0000000100000000 R11: 0000000000000246 R12: 00007ffdb17a94ec R13: 0000000000000001 R14: 431bde82d7b634db R15: 00007ffdb17a9530 </TASK> ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3510 at lib/iov_iter.c:918 iov_iter_revert+0x382/0x830 Modules linked in: CPU: 0 PID: 3510 Comm: syz-executor164 Not tainted 6.1.45-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:iov_iter_revert+0x382/0x830 lib/iov_iter.c:918 Code: 80 3c 01 00 48 8b 5c 24 18 74 08 48 89 df e8 55 4f ad fd 4c 89 2b 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 1e bc 56 fd <0f> 0b eb e8 48 8d 6b 18 48 89 e8 48 c1 e8 03 42 80 3c 28 00 74 08 RSP: 0018:ffffc90003aaf7f0 EFLAGS: 00010293 RAX: ffffffff843341e2 RBX: ffffc90003aaf980 RCX: ffff888027cebb80 RDX: 0000000000000000 RSI: ffffffffffff1000 RDI: 000000007ffff000 RBP: ffffffffffff1000 R08: ffffffff84333e9c R09: fffffbfff1a407a3 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffff1000 R13: ffffc90003aaf980 R14: ffffc90003aaf990 R15: 0000000000000000 FS: 000055555669a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdba93500f8 CR3: 0000000013724000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> generic_file_read_iter+0x3d7/0x540 mm/filemap.c:2805 call_read_iter include/linux/fs.h:2199 [inline] generic_file_splice_read+0x23c/0x630 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x408/0xbd0 fs/splice.c:865 do_splice_direct+0x27f/0x3c0 fs/splice.c:974 do_sendfile+0x61c/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdba92b91e9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdb17a94c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007ffdb17a94f0 RCX: 00007fdba92b91e9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 0000000000000002 R08: 00007ffdb17a9266 R09: 00007ffdb17a9510 R10: 0000000100000000 R11: 0000000000000246 R12: 00007ffdb17a94ec R13: 0000000000000001 R14: 431bde82d7b634db R15: 00007ffdb17a9530 </TASK> ---------------- Code disassembly (best guess): 0: 28 00 sub %al,(%rax) 2: 00 00 add %al,(%rax) 4: 75 05 jne 0xb 6: 48 83 c4 28 add $0x28,%rsp a: c3 ret b: e8 21 18 00 00 call 0x1831 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 c7 c1 b8 ff ff ff mov $0xffffffffffffffb8,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/08/13 18:12	linux-6.1.y	1321ab403b38	39990d51	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-6-1-kasan	WARNING in iov_iter_revert

Crashes (1):

Assets (help?)