syzbot


WARNING in fscrypt_fname_siphash

Status: upstream: reported C repro on 2024/05/29 20:41
Subsystems: fscrypt
[Documentation on labels]
Reported-by: syzbot+340581ba9dceb7e06fb3@syzkaller.appspotmail.com
First crash: 23d, last: 7d06h
Cause bisection: introduced by (bisect log) :
commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
Author: Florian Westphal <fw@strlen.de>
Date: Wed Apr 21 07:51:08 2021 +0000

  netfilter: arp_tables: pass table pointer via nf_hook_ops

Crash: WARNING in __nf_unregister_net_hook (log)
Repro: C syz .config
  
Discussions (2)
Title Replies (including bot) Last reply
[PATCH] ext4: add casefolded file check 21 (21) 2024/06/06 06:27
[syzbot] [fscrypt?] WARNING in fscrypt_fname_siphash 0 (2) 2024/05/30 06:32
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in fscrypt_fname_siphash 1 22d 22d 0/3 upstream: reported on 2024/05/27 07:37
Last patch testing requests (5)
Created Duration User Patch Repo Result
2024/06/11 05:32 13m retest repro upstream report log
2024/06/11 05:32 13m retest repro upstream report log
2024/06/11 05:32 12m retest repro upstream report log
2024/06/11 05:25 9m retest repro upstream report log
2024/05/30 06:32 11m lizhi.xu@windriver.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 74eca356f6d4 error OK

Sample crash report:
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
fscrypt: AES-256-CBC-CTS using implementation "cts-cbc-aes-aesni"
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5079 at fs/crypto/fname.c:567 fscrypt_fname_siphash+0xc2/0x100 fs/crypto/fname.c:567
Modules linked in:
CPU: 1 PID: 5079 Comm: syz-executor422 Not tainted 6.9.0-syzkaller-12358-g74eca356f6d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:fscrypt_fname_siphash+0xc2/0x100 fs/crypto/fname.c:567
Code: 0f b6 04 28 84 c0 75 3d 41 8b 34 24 49 83 c6 40 4c 89 ff 4c 89 f2 5b 41 5c 41 5d 41 5e 41 5f e9 b4 97 52 09 e8 3f 7a 72 ff 90 <0f> 0b 90 eb a8 89 d9 80 e1 07 38 c1 7c 86 48 89 df e8 d8 f0 d4 ff
RSP: 0018:ffffc90003c7f430 EFLAGS: 00010293
RAX: ffffffff822399b1 RBX: 0000000000000000 RCX: ffff888022a61e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003c7f5f0 R08: ffffffff82239955 R09: ffffffff82541c38
R10: 0000000000000007 R11: ffff888022a61e00 R12: ffffc90003c7f580
R13: dffffc0000000000 R14: ffff88807fcb3000 R15: ffff88807fd0b4b0
FS:  000055558ddca380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045ede0 CR3: 0000000074e92000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ext4fs_dirhash+0x3db/0x1530 fs/ext4/hash.c:268
 ext4fs_dirhash+0x193/0x320 fs/ext4/hash.c:322
 htree_dirblock_to_tree+0x727/0x10e0 fs/ext4/namei.c:1124
 ext4_htree_fill_tree+0x744/0x1400 fs/ext4/namei.c:1219
 ext4_dx_readdir fs/ext4/dir.c:597 [inline]
 ext4_readdir+0x2b1c/0x3500 fs/ext4/dir.c:142
 iterate_dir+0x65e/0x820 fs/readdir.c:110
 __do_sys_getdents64 fs/readdir.c:409 [inline]
 __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:394
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91a3441b99
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd41154a58 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 6f72746e6f632f2e RCX: 00007f91a3441b99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f91a34b55f0 R08: 000055558ddcb4c0 R09: 000055558ddcb4c0
R10: 000055558ddcb4c0 R11: 0000000000000246 R12: 00007ffd41154a80
R13: 00007ffd41154ca8 R14: 431bde82d7b634db R15: 00007f91a348a03b
 </TASK>

Crashes (27):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/26 02:50 upstream 74eca356f6d4 a10a183e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in fscrypt_fname_siphash
2024/05/26 01:20 upstream 74eca356f6d4 a10a183e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in fscrypt_fname_siphash
2024/05/25 21:06 upstream 56fb6f92854f a10a183e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in fscrypt_fname_siphash
2024/05/25 20:42 upstream 56fb6f92854f c2e07261 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-qemu-upstream WARNING in fscrypt_fname_siphash
2024/05/25 20:57 upstream 56fb6f92854f a10a183e .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-qemu2-arm32 WARNING in fscrypt_fname_siphash
2024/05/25 20:48 linux-next 3689b0ef08b7 a10a183e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in fscrypt_fname_siphash
2024/05/27 10:34 upstream 1613e604df0c a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in fscrypt_fname_siphash
2024/05/27 10:34 upstream 1613e604df0c a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in fscrypt_fname_siphash
2024/05/27 07:29 upstream 6fbf71854e2d a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in fscrypt_fname_siphash
2024/05/27 07:26 upstream 6fbf71854e2d a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in fscrypt_fname_siphash
2024/05/25 23:23 upstream 56fb6f92854f a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in fscrypt_fname_siphash
2024/05/25 23:23 upstream 56fb6f92854f a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in fscrypt_fname_siphash
2024/05/25 23:23 upstream 56fb6f92854f a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in fscrypt_fname_siphash
2024/05/25 20:36 upstream 56fb6f92854f a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in fscrypt_fname_siphash
2024/05/25 20:35 upstream 56fb6f92854f a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in fscrypt_fname_siphash
2024/05/25 20:34 upstream 56fb6f92854f c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in fscrypt_fname_siphash
2024/05/28 05:23 upstream 2bfcfd584ff5 f550015e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in fscrypt_fname_siphash
2024/05/28 05:22 upstream 2bfcfd584ff5 f550015e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in fscrypt_fname_siphash
2024/05/27 07:29 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in fscrypt_fname_siphash
2024/05/27 07:29 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in fscrypt_fname_siphash
2024/05/27 07:28 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in fscrypt_fname_siphash
2024/05/27 07:28 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in fscrypt_fname_siphash
2024/05/27 07:26 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in fscrypt_fname_siphash
2024/05/25 20:33 upstream 56fb6f92854f a10a183e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in fscrypt_fname_siphash
2024/05/25 20:33 upstream 56fb6f92854f a10a183e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in fscrypt_fname_siphash
2024/05/27 07:32 linux-next 3689b0ef08b7 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in fscrypt_fname_siphash
2024/05/25 20:32 linux-next 3689b0ef08b7 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in fscrypt_fname_siphash
* Struck through repros no longer work on HEAD.