syzbot


WARNING in fuse_writepage_locked
Status: closed as dup on 2022/04/20 15:14
Reported-by: syzbot+d0dd8d6b123d46c4dcf2@syzkaller.appspotmail.com
First crash: 188d, last: 95d
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in fuse_write_file_get C done 30 1d16h 39d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 22137 at fs/fuse/file.c:1833 fuse_write_file_get fs/fuse/file.c:1833 [inline]
WARNING: CPU: 0 PID: 22137 at fs/fuse/file.c:1833 fuse_write_file_get fs/fuse/file.c:1830 [inline]
WARNING: CPU: 0 PID: 22137 at fs/fuse/file.c:1833 fuse_writepage_locked+0xa84/0xd40 fs/fuse/file.c:1918
Modules linked in:
CPU: 0 PID: 22137 Comm: syz-executor.0 Not tainted 5.17.0-rc2-syzkaller-00398-gd8ad2ce873ab #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1833 [inline]
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1830 [inline]
RIP: 0010:fuse_writepage_locked+0xa84/0xd40 fs/fuse/file.c:1918
Code: 20 5b 5d 41 5c 41 5d 41 5e 41 5f c3 41 bc f4 ff ff ff e9 2d ff ff ff e8 5a 75 c4 fe 48 8b 3c 24 e8 d1 9d 99 06 e8 4c 75 c4 fe <0f> 0b 49 8d be c8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa
RSP: 0018:ffffc900041af5a8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff888049c86348 RCX: ffffc90003022000
RDX: 0000000000040000 RSI: ffffffff82b40344 RDI: 0000000000000001
RBP: ffffea0000262640 R08: 0000000000000000 R09: ffff888049c86463
R10: ffffed1009390c8c R11: 0000000000000001 R12: ffff888049c85e80
R13: ffffea0001d7b100 R14: ffff88801eb4f400 R15: ffff88807bbc4000
FS:  00007fb67ccd0700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f712cd80090 CR3: 00000000787fd000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 fuse_writepage+0x104/0x160 fs/fuse/file.c:1976
 writeout mm/migrate.c:801 [inline]
 fallback_migrate_page mm/migrate.c:825 [inline]
 move_to_new_page+0x7ea/0xf00 mm/migrate.c:876
 __unmap_and_move mm/migrate.c:1038 [inline]
 unmap_and_move mm/migrate.c:1105 [inline]
 migrate_pages+0x2b8e/0x3e90 mm/migrate.c:1388
 compact_zone+0x1ada/0x3850 mm/compaction.c:2400
 compact_node+0x129/0x1f0 mm/compaction.c:2684
 compact_nodes mm/compaction.c:2700 [inline]
 sysctl_compaction_handler+0x10e/0x160 mm/compaction.c:2742
 proc_sys_call_handler+0x437/0x630 fs/proc/proc_sysctl.c:604
 call_write_iter include/linux/fs.h:2074 [inline]
 new_sync_write+0x431/0x660 fs/read_write.c:503
 vfs_write+0x7cd/0xae0 fs/read_write.c:590
 ksys_write+0x12d/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb67e35b059
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007fb67ccd0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb67e46df60 RCX: 00007fb67e35b059
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fb67e3b508d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe5b4003af R14: 00007fb67ccd0300 R15: 0000000000022000
 </TASK>

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2022/02/06 20:25 upstream d8ad2ce873ab a7dab638 .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-root 2022/01/09 01:28 upstream 21f35d2ca83e 2ca0d385 .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-root 2021/11/25 21:22 upstream b501b85957de 63eeac02 .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-root 2021/11/18 17:30 upstream 42eb8fdac2fc 31a30fc0 .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-root 2021/11/17 20:19 upstream ee1703cda8dc cafff8b6 .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-386 2022/02/18 08:40 upstream 9195e5e0adbb 3cd800e4 .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-386 2021/12/06 09:53 upstream 0fcfb00b28c0 a617004c .config log report info WARNING in fuse_writepage_locked
ci-upstream-kasan-gce-386 2021/11/18 18:02 upstream 42eb8fdac2fc 31a30fc0 .config log report info WARNING in fuse_writepage_locked