KCSAN: data-race in search_nested_keyrings / search_nested

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision	Error
a0a8be05-d163-4053-98b2-461496a17f71	assessment-kcsan		💥	KCSAN: data-race in search_nested_keyrings / search_nested_keyrings (4)	2026/01/09 22:28	2026/01/09 22:28	2026/01/09 22:46	7519916073b761ced56a7b15fdeeb4674e8dc125	Error 429, Message: You exceeded your current quota, please check your plan and billing details. For more information on this error, head to: https://ai.google.dev/gemini-api/docs/rate-limits. To moni... truncated to first 200 bytes; open job for full error

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in search_nested_keyrings / search_nested_keyrings (2) lsm keyrings	6	1	792d	792d	0/29	auto-obsoleted due to no activity on 2024/05/25 15:41
upstream	KCSAN: data-race in search_nested_keyrings / search_nested_keyrings (3) keyrings lsm	6	1	285d	285d	0/29	auto-obsoleted due to no activity on 2025/11/05 05:48
upstream	KCSAN: data-race in search_nested_keyrings / search_nested_keyrings lsm keyrings	6	3	2411d	2423d	0/29	auto-closed as invalid on 2020/01/23 16:46

Kernel

Title

Rank 🛈

upstream

KCSAN: data-race in search_nested_keyrings / search_nested_keyrings (2) lsm keyrings

792d

0/29

auto-obsoleted due to no activity on 2024/05/25 15:41

upstream

KCSAN: data-race in search_nested_keyrings / search_nested_keyrings (3) keyrings lsm

285d

0/29

auto-obsoleted due to no activity on 2025/11/05 05:48

upstream

KCSAN: data-race in search_nested_keyrings / search_nested_keyrings lsm keyrings

2411d

2423d

0/29

auto-closed as invalid on 2020/01/23 16:46

================================================================== BUG: KCSAN: data-race in search_nested_keyrings / search_nested_keyrings write to 0xffff8881001a3560 of 8 bytes by task 23290 on cpu 0: search_nested_keyrings+0x7ac/0x9b0 security/keys/keyring.c:860 keyring_search_rcu+0xf7/0x190 security/keys/keyring.c:925 get_user_session_keyring_rcu security/keys/process_keys.c:208 [inline] search_cred_keyrings_rcu+0x2a3/0x3c0 security/keys/process_keys.c:500 search_process_keyrings_rcu security/keys/process_keys.c:544 [inline] lookup_user_key+0x8eb/0xd10 security/keys/process_keys.c:762 keyctl_keyring_unlink+0x23/0x120 security/keys/keyctl.c:558 __do_sys_keyctl security/keys/keyctl.c:1906 [inline] __se_sys_keyctl+0x5a3/0xb80 security/keys/keyctl.c:1874 __x64_sys_keyctl+0x67/0x80 security/keys/keyctl.c:1874 x64_sys_call+0x27b8/0x3000 arch/x86/include/generated/asm/syscalls_64.h:251 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xca/0x2b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f write to 0xffff8881001a3560 of 8 bytes by task 23291 on cpu 1: search_nested_keyrings+0x7ac/0x9b0 security/keys/keyring.c:860 keyring_search_rcu+0xf7/0x190 security/keys/keyring.c:925 get_user_session_keyring_rcu security/keys/process_keys.c:208 [inline] search_cred_keyrings_rcu+0x2a3/0x3c0 security/keys/process_keys.c:500 search_process_keyrings_rcu security/keys/process_keys.c:544 [inline] lookup_user_key+0x8eb/0xd10 security/keys/process_keys.c:762 keyctl_pkey_params_get+0x25b/0x320 security/keys/keyctl_pkey.c:98 keyctl_pkey_query+0x58/0x1b0 security/keys/keyctl_pkey.c:177 __do_sys_keyctl security/keys/keyctl.c:1990 [inline] __se_sys_keyctl+0x7ed/0xb80 security/keys/keyctl.c:1874 __x64_sys_keyctl+0x67/0x80 security/keys/keyctl.c:1874 x64_sys_call+0x27b8/0x3000 arch/x86/include/generated/asm/syscalls_64.h:251 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xca/0x2b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00000000000001b3 -> 0x00000000000001b5 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 23291 Comm: syz.1.6511 Tainted: G W syzkaller #0 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 ==================================================================

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/12/22 21:51	upstream	9448598b22c5	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in search_nested_keyrings / search_nested_keyrings
2025/11/28 06:40	upstream	e1afacb68573	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-upstream-kcsan-gce	KCSAN: data-race in search_nested_keyrings / search_nested_keyrings

Crashes (2):

Assets (help?)