syzbot


WARNING in verify_dirent_name

Status: closed as dup on 2019/10/07 19:08
Subsystems: exfat
[Documentation on labels]
Reported-by: syzbot+76e3977ad1b8cc4d113a@syzkaller.appspotmail.com
First crash: 1635d, last: 1621d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in filldir64 exfat 76 1623d 1633d
Discussions (1)
Title Replies (including bot) Last reply
WARNING in verify_dirent_name 1 (2) 2019/10/07 19:08

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 9984 at fs/readdir.c:110 verify_dirent_name+0x67/0x80 fs/readdir.c:110
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 9984 Comm: syz-executor.2 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:verify_dirent_name+0x67/0x80 fs/readdir.c:110
Code: 06 b6 ff 44 89 e0 5b 41 5c 5d c3 e8 e3 06 b6 ff 0f 0b e8 dc 06 b6 ff 41 bc fb ff ff ff 5b 44 89 e0 41 5c 5d c3 e8 c9 06 b6 ff <0f> 0b 41 bc fb ff ff ff eb ca 0f 1f 44 00 00 66 2e 0f 1f 84 00 00
RSP: 0018:ffff88805606fad0 EFLAGS: 00010212
RAX: 0000000000040000 RBX: 000000000000000c RCX: ffffc9000a3b7000
RDX: 000000000000492d RSI: ffffffff81bd0e47 RDI: ffff88805606fcd3
RBP: ffff88805606fae0 R08: ffff8880570d6600 R09: 0000000000000004
R10: fffffbfff120da44 R11: ffffffff8906d223 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000004 R15: ffff88805606fe50
 filldir64+0x40/0x670 fs/readdir.c:316
 dir_emit include/linux/fs.h:3542 [inline]
 __fat_readdir+0xd9e/0x1cb0 fs/fat/dir.c:677
 fat_readdir+0x44/0x60 fs/fat/dir.c:704
 iterate_dir+0x47f/0x5e0 fs/readdir.c:65
 ksys_getdents64+0x1ce/0x320 fs/readdir.c:372
 __do_sys_getdents64 fs/readdir.c:391 [inline]
 __se_sys_getdents64 fs/readdir.c:388 [inline]
 __x64_sys_getdents64+0x73/0xb0 fs/readdir.c:388
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a59
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5e20840c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a59
RDX: 0000000000001000 RSI: 00000000200005c0 RDI: 0000000000000008
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e208416d4
R13: 00000000004c0535 R14: 00000000004d2d38 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (222):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/10/18 06:20 upstream 283ea345934d 8c88c9c1 .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/17 12:37 upstream bc88f85c6c09 8c88c9c1 .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/17 06:06 upstream bc88f85c6c09 8c88c9c1 .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/16 08:29 upstream 3b1f00aceb7a d4ea592f .config console log report ci-upstream-kasan-gce-root
2019/10/16 07:24 upstream 3b1f00aceb7a d4ea592f .config console log report ci-upstream-kasan-gce-root
2019/10/15 18:10 upstream 5bc52f64e884 b5268b89 .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/15 09:54 upstream 5bc52f64e884 05ad7292 .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/13 19:55 upstream da94001239cc 2f661ec4 .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/13 15:50 upstream da94001239cc 2f661ec4 .config console log report ci-upstream-kasan-gce-root
2019/10/12 20:29 upstream 1c0cc5f1ae5e 426631dd .config console log report ci-upstream-kasan-gce-root
2019/10/12 19:40 upstream 1c0cc5f1ae5e 426631dd .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/12 00:51 upstream 9e208aa06c21 426631dd .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/11 20:54 upstream 9e208aa06c21 426631dd .config console log report ci-upstream-kasan-gce-root
2019/10/11 10:35 upstream fb20da6af705 1a3bad90 .config console log report ci-upstream-kasan-gce-root
2019/10/11 10:23 upstream fb20da6af705 1a3bad90 .config console log report ci-upstream-kasan-gce-root
2019/10/10 12:31 upstream 8a8c600de5dc a4efa8c0 .config console log report ci-upstream-kasan-gce-root
2019/10/10 02:22 upstream 8a8c600de5dc c4b9981b .config console log report ci-upstream-kasan-gce-selinux-root
2019/10/10 00:09 upstream 8a8c600de5dc c4b9981b .config console log report ci-upstream-kasan-gce-root
2019/10/09 11:48 upstream e3280b54afed 312c6a5a .config console log report ci-upstream-kasan-gce-root
2019/10/09 01:28 upstream eda57a0e4299 b1ebbfef .config console log report ci-upstream-kasan-gce-root
2019/10/06 08:40 upstream 43b815c6a8e7 f3f7d9c8 .config console log report ci-upstream-kasan-gce-root
2019/10/20 09:22 linux-next c4b9850b3676 8c88c9c1 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/20 09:19 linux-next c4b9850b3676 8c88c9c1 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/20 04:34 linux-next c4b9850b3676 8c88c9c1 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/17 22:50 linux-next 3ef845da3c3b 8c88c9c1 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/17 02:17 linux-next 0e9d28bc6c81 8c88c9c1 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/16 10:54 linux-next 0e9d28bc6c81 d4ea592f .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/15 18:15 linux-next 0e9d28bc6c81 b5268b89 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/15 15:45 linux-next 0e9d28bc6c81 b5268b89 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/15 08:27 linux-next 0e9d28bc6c81 05ad7292 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/14 16:20 linux-next 4eeb5abd245d 05ad7292 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/13 19:47 linux-next 8ada228ac7ed 2f661ec4 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/13 15:50 linux-next 8ada228ac7ed 2f661ec4 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/11 19:36 linux-next 8ada228ac7ed 426631dd .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/11 14:56 linux-next 8ada228ac7ed 1a3bad90 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/11 01:07 linux-next 4a9e93dbc796 1a3bad90 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/11 01:05 linux-next 4a9e93dbc796 1a3bad90 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/09 21:29 linux-next 1ba4389f4572 312c6a5a .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/09 13:32 linux-next 1ba4389f4572 312c6a5a .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/09 12:01 linux-next 1ba4389f4572 312c6a5a .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/09 10:41 linux-next 1ba4389f4572 312c6a5a .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/09 01:25 linux-next 442630f691a1 b1ebbfef .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/08 21:31 linux-next 442630f691a1 b1ebbfef .config console log report ci-upstream-linux-next-kasan-gce-root
2019/10/08 18:39 linux-next 442630f691a1 b1ebbfef .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.