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: 7d05h, last: 1d03h
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in fuse_write_file_get (2) fuse 4 3d20h 3d16h
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: 8045 at fs/fuse/file.c:1989 fuse_write_file_get fs/fuse/file.c:1989 [inline]
WARNING: CPU: 0 PID: 8045 at fs/fuse/file.c:1989 fuse_write_file_get fs/fuse/file.c:1986 [inline]
WARNING: CPU: 0 PID: 8045 at fs/fuse/file.c:1989 fuse_writepages+0x497/0x5a0 fs/fuse/file.c:2368
Modules linked in:
CPU: 0 UID: 0 PID: 8045 Comm: kworker/u8:13 Not tainted 6.12.0-rc1-syzkaller-00046-g7ec462100ef9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-0:46)
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 e9 69 48 54 08 e8 39 8f 91 fe 48 8b 7c 24 08 e8 df 36 26 08 e8 2a 8f 91 fe 90 <0f> 0b 90 41 bf fb ff ff ff eb 8b e8 19 8f 91 fe 48 8b 7c 24 18 be
RSP: 0018:ffffc9000345f4a8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc9000345f4f8 RCX: 0000000000000000
RDX: ffff88802dd98000 RSI: ffffffff82fbf8b6 RDI: 0000000000000001
RBP: ffff88807abecaa0 R08: 0000000000000000 R09: ffffed100f57d9d7
R10: ffff88807abecebb R11: 0000000000000001 R12: ffffc9000345f840
R13: ffff88807abec880 R14: ffff888061fb4800 R15: ffff88807abecd50
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c442d97 CR3: 000000006eed8000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 do_writepages+0x1a6/0x7f0 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+0x9c8/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c4/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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.