syzbot


WARNING in hashtab_init

Status: premoderation: reported C repro on 2025/06/19 03:47
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+3c25d8ebf79dc6165434@syzkaller.appspotmail.com
First crash: 79d, last: 6m
Bug presence (2)
Date Name Commit Repro Result
2025/06/24 lts (merge base) e0e2f7824338 C [report] WARNING in hashtab_init
2025/06/24 upstream (ToT) 78f4e737a53e C [report] WARNING in hashtab_init
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in hashtab_init selinux -1 C 992 38d 80d 29/29 fixed on 2025/09/04 16:57

Sample crash report:
WARNING: CPU: 1 PID: 297 at mm/page_alloc.c:5157 __alloc_pages_noprof+0xe4/0x6c0 mm/page_alloc.c:5157
Modules linked in:
CPU: 1 UID: 0 PID: 297 Comm: syz-executor112 Not tainted 6.12.23-syzkaller-g30b14cdad458 #0 c708c6bafa1314b3e84c64b9f03b67766970ebbd
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__alloc_pages_noprof+0xe4/0x6c0 mm/page_alloc.c:5157
Code: 0f 1f 44 00 00 41 83 fd 0b 72 28 b8 00 20 00 00 23 44 24 40 75 1d 80 3d b4 7a ee 05 00 0f 85 c4 00 00 00 c6 05 a7 7a ee 05 01 <0f> 0b 31 c0 e9 b6 00 00 00 41 83 fd 0a 0f 87 aa 00 00 00 44 89 6c
RSP: 0018:ffffc900011ff680 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff9200023fed4 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900011ff728
RBP: ffffc900011ff7a8 R08: ffffc900011ff727 R09: 0000000000000000
R10: ffffc900011ff710 R11: fffff5200023fee5 R12: ffffc900011ff6c0
R13: 0000000000000015 R14: dffffc0000000000 R15: 0000000000000000
FS:  00005555798ad480(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000004000 CR3: 000000010f672000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 ___kmalloc_large_node+0x9c/0x1d0 mm/slub.c:4293
 __kmalloc_large_node_noprof+0x1e/0xe0 mm/slub.c:4322
 __do_kmalloc_node mm/slub.c:4338 [inline]
 __kmalloc_noprof+0x26d/0x450 mm/slub.c:4362
 kmalloc_noprof include/linux/slab.h:885 [inline]
 kmalloc_array_noprof include/linux/slab.h:-1 [inline]
 hashtab_init+0xdb/0x1f0 security/selinux/ss/hashtab.c:43
 symtab_init+0x44/0x70 security/selinux/ss/symtab.c:45
 policydb_read+0x8fe/0x28c0 security/selinux/ss/policydb.c:2583
 security_load_policy+0x162/0x12f0 security/selinux/ss/services.c:2281
 sel_write_load+0x298/0x5e0 security/selinux/selinuxfs.c:604
 vfs_write+0x3c0/0xe80 fs/read_write.c:682
 ksys_write+0x141/0x250 fs/read_write.c:737
 __do_sys_write fs/read_write.c:749 [inline]
 __se_sys_write fs/read_write.c:746 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:746
 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f7939e6b179
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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:00007fff7b62c468 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7939eb415d RCX: 00007f7939e6b179
RDX: 00000000000044f0 RSI: 0000200000000000 RDI: 0000000000000003
RBP: 00007f7939eb412d R08: 00007f7939eb917c R09: 00007f7939eb917c
R10: 00007f7939eb917c R11: 0000000000000246 R12: 00007f7939eb917c
R13: 00007f7939eb4095 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
---[ end trace 0000000000000000 ]---
SELinux: failed to loa

Crashes (1138):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/19 04:38 android16-6.12 30b14cdad458 ed3e87f7 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/06/19 04:16 android16-6.12 30b14cdad458 ed3e87f7 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/06 17:35 android16-6.12 ad3375325ca2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/06 11:04 android16-6.12 ad3375325ca2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/06 06:11 android16-6.12 6904c5603852 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/06 05:07 android16-6.12 6904c5603852 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/06 03:50 android16-6.12 6904c5603852 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/06 00:10 android16-6.12 6904c5603852 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/05 16:10 android16-6.12 c5058bfb5bf2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/05 13:15 android16-6.12 c5058bfb5bf2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/05 10:32 android16-6.12 c5058bfb5bf2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/05 08:21 android16-6.12 c5058bfb5bf2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/05 05:39 android16-6.12 c5058bfb5bf2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 21:44 android16-6.12 3a1f856821c2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 19:20 android16-6.12 3a1f856821c2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 12:46 android16-6.12 f67a8c04c720 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 11:05 android16-6.12 f67a8c04c720 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 07:25 android16-6.12 f67a8c04c720 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 05:16 android16-6.12 f67a8c04c720 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 03:53 android16-6.12 f67a8c04c720 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 02:49 android16-6.12 f67a8c04c720 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/04 01:32 android16-6.12 f67a8c04c720 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 21:36 android16-6.12 53e4390f692f 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 16:54 android16-6.12 53e4390f692f 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 14:43 android16-6.12 53e4390f692f 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 13:18 android16-6.12 53e4390f692f 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 12:07 android16-6.12 53e4390f692f 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 10:45 android16-6.12 53e4390f692f 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 08:52 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 06:29 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 03:39 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/03 02:30 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 23:43 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 22:04 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 19:47 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 16:07 android16-6.12 4ae522d0f966 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 07:13 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 02:56 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/02 01:44 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/01 18:40 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/01 17:18 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/01 12:39 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/01 10:25 android16-6.12 2e5a4bace74a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/09/01 00:51 android16-6.12 6879524e1c5a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/08/31 22:52 android16-6.12 6879524e1c5a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/08/31 20:43 android16-6.12 6879524e1c5a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/08/31 14:58 android16-6.12 6879524e1c5a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/08/31 11:32 android16-6.12 6879524e1c5a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
2025/08/28 05:49 android16-6.12 c17d1926681a e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in hashtab_init
* Struck through repros no longer work on HEAD.