syzbot


WARNING in fuse_writepages

Status: closed as dup on 2024/10/02 00:02
Subsystems: fuse
[Documentation on labels]
Reported-by: syzbot+217a976dc26ef2fa8711@syzkaller.appspotmail.com
First crash: 8d02h, last: 17h04m
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in fuse_write_file_get (2) fuse 4 4d17h 4d13h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [fuse?] WARNING in fuse_writepages 2 (3) 2024/10/04 19:04

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1114 at fs/fuse/file.c:1989 fuse_write_file_get fs/fuse/file.c:1989 [inline]
WARNING: CPU: 0 PID: 1114 at fs/fuse/file.c:1989 fuse_write_file_get fs/fuse/file.c:1986 [inline]
WARNING: CPU: 0 PID: 1114 at fs/fuse/file.c:1989 fuse_writepages+0x497/0x5a0 fs/fuse/file.c:2368
Modules linked in:
CPU: 0 UID: 0 PID: 1114 Comm: kworker/u8:6 Not tainted 6.12.0-rc1-syzkaller-00306-g27cc6fdf7201 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-0:39)
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1989 [inline]
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1986 [inline]
RIP: 0010:fuse_writepages+0x497/0x5a0 fs/fuse/file.c:2368
Code: 00 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 d9 bd 90 fe 48 8b 7c 24 08 e8 5f 7e 27 08 e8 ca bd 90 fe 90 <0f> 0b 90 41 bf fb ff ff ff eb 8b e8 b9 bd 90 fe 48 8b 7c 24 18 be
RSP: 0018:ffffc90003d774a8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90003d774f8 RCX: 0000000000000000
RDX: ffff888027558000 RSI: ffffffff82fcc386 RDI: 0000000000000001
RBP: ffff88805da89f20 R08: 0000000000000000 R09: ffffed100bb51467
R10: ffff88805da8a33b R11: ffffffff961dbc18 R12: ffffc90003d77840
R13: ffff88805da89d00 R14: ffff8880683ac800 R15: ffff88805da8a1d0
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020011000 CR3: 0000000021f96000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x1a3/0x7f0 mm/page-writeback.c:2683
 __writeback_single_inode+0x166/0xfa0 fs/fs-writeback.c:1658
 writeback_sb_inodes+0x603/0xfa0 fs/fs-writeback.c:1954
 wb_writeback+0x199/0xb50 fs/fs-writeback.c:2134
 wb_do_writeback fs/fs-writeback.c:2281 [inline]
 wb_workfn+0x294/0xbc0 fs/fs-writeback.c:2321
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (8):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/05 04:57 upstream 27cc6fdf7201 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in fuse_writepages
2024/10/03 20:48 upstream 7ec462100ef9 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in fuse_writepages
2024/10/01 18:19 upstream e32cde8d2bd7 ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in fuse_writepages
2024/09/29 22:53 upstream e7ed34365879 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in fuse_writepages
2024/09/29 13:40 upstream 3efc57369a0c ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in fuse_writepages
2024/09/27 19:08 upstream e477dba5442c 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in fuse_writepages
2024/09/29 07:27 upstream 3efc57369a0c ba29ff75 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in fuse_writepages
2024/10/02 11:56 upstream e32cde8d2bd7 83a2f15f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in fuse_writepages
* Struck through repros no longer work on HEAD.