syzbot


WARNING in fuse_writepage_locked

Status: closed as dup on 2022/04/20 15:14
Subsystems: fuse
[Documentation on labels]
Reported-by: syzbot+d0dd8d6b123d46c4dcf2@syzkaller.appspotmail.com
First crash: 946d, last: 699d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in fuse_write_file_get fuse C done 85 668d 797d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] WARNING in fuse_writepage_locked 1 (2) 2022/04/20 15:14

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 26411 at fs/fuse/file.c:1843 fuse_write_file_get fs/fuse/file.c:1843 [inline]
WARNING: CPU: 1 PID: 26411 at fs/fuse/file.c:1843 fuse_writepage_locked+0xa84/0xd40 fs/fuse/file.c:1928
Modules linked in:
CPU: 1 PID: 26411 Comm: syz-executor.0 Not tainted 5.19.0-rc7-syzkaller-00135-g68e77ffbfd06 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:fuse_write_file_get fs/fuse/file.c:1843 [inline]
RIP: 0010:fuse_writepage_locked+0xa84/0xd40 fs/fuse/file.c:1928
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 3a 41 ae fe 48 8b 3c 24 e8 c1 f8 ae 06 e8 2c 41 ae 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:ffffc90005e47538 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88805b487bc8 RCX: ffffc900034b9000
RDX: 0000000000040000 RSI: ffffffff82cb5b84 RDI: 0000000000000001
RBP: ffffea000026db00 R08: 0000000000000000 R09: ffff88805b487ce3
R10: ffffed100b690f9c R11: 0000000000000001 R12: ffff88805b487700
R13: ffffea0001cd45c0 R14: ffff88802a8d0000 R15: ffff888016b20800
FS:  00007f7b1d346700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50aa194640 CR3: 0000000079b80000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fuse_writepage+0x1c8/0x2c0 fs/fuse/file.c:1991
 writeout+0x1c5/0x530 mm/migrate.c:797
 fallback_migrate_page mm/migrate.c:821 [inline]
 move_to_new_folio+0x3b6/0xb30 mm/migrate.c:872
 __unmap_and_move mm/migrate.c:1035 [inline]
 unmap_and_move mm/migrate.c:1110 [inline]
 migrate_pages+0x4119/0x5cb0 mm/migrate.c:1389
 compact_zone+0x1ad3/0x3760 mm/compaction.c:2415
 compact_node+0x129/0x1f0 mm/compaction.c:2697
 compact_nodes mm/compaction.c:2713 [inline]
 sysctl_compaction_handler+0x113/0x160 mm/compaction.c:2755
 proc_sys_call_handler+0x4a1/0x6e0 fs/proc/proc_sysctl.c:611
 call_write_iter include/linux/fs.h:2058 [inline]
 new_sync_write+0x38a/0x560 fs/read_write.c:504
 vfs_write+0x7c0/0xac0 fs/read_write.c:591
 ksys_write+0x127/0x250 fs/read_write.c:644
 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+0x63/0xcd
RIP: 0033:0x7f7b1c289209
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:00007f7b1d346168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7b1c39bf60 RCX: 00007f7b1c289209
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f7b1c2e3161 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffee50df5bf R14: 00007f7b1d346300 R15: 0000000000022000
 </TASK>

Crashes (12):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/07/22 11:50 upstream 68e77ffbfd06 22343af4 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in fuse_writepage_locked
2022/07/11 13:34 upstream 32346491ddf2 da3d6955 .config console log report info ci-upstream-kasan-gce WARNING in fuse_writepage_locked
2022/06/07 02:49 upstream e71e60cd74df c8857892 .config console log report info ci-upstream-kasan-gce WARNING in fuse_writepage_locked
2022/02/06 20:25 upstream d8ad2ce873ab a7dab638 .config console log report info ci-upstream-kasan-gce-root WARNING in fuse_writepage_locked
2022/01/09 01:28 upstream 21f35d2ca83e 2ca0d385 .config console log report info ci-upstream-kasan-gce-root WARNING in fuse_writepage_locked
2021/11/25 21:22 upstream b501b85957de 63eeac02 .config console log report info ci-upstream-kasan-gce-root WARNING in fuse_writepage_locked
2021/11/18 17:30 upstream 42eb8fdac2fc 31a30fc0 .config console log report info ci-upstream-kasan-gce-root WARNING in fuse_writepage_locked
2021/11/17 20:19 upstream ee1703cda8dc cafff8b6 .config console log report info ci-upstream-kasan-gce-root WARNING in fuse_writepage_locked
2022/05/27 08:49 upstream 7e284070abe5 116e7a7b .config console log report info ci-upstream-kasan-gce-386 WARNING in fuse_writepage_locked
2022/02/18 08:40 upstream 9195e5e0adbb 3cd800e4 .config console log report info ci-upstream-kasan-gce-386 WARNING in fuse_writepage_locked
2021/12/06 09:53 upstream 0fcfb00b28c0 a617004c .config console log report info ci-upstream-kasan-gce-386 WARNING in fuse_writepage_locked
2021/11/18 18:02 upstream 42eb8fdac2fc 31a30fc0 .config console log report info ci-upstream-kasan-gce-386 WARNING in fuse_writepage_locked
* Struck through repros no longer work on HEAD.