CVE catalog
CVE-2022-50771
linux: CVE-2022-50771
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.24% · Oct 25, 2026
In the Linux kernel, the following vulnerability has been resolved: rcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state() Running rcutorture with non-zero fqs_duration module parameter in a kernel built with CONFIG_PREEMPTION=y results in the following splat: BUG: using __this_cpu_read() in preemptible [00000000] code: rcu_torture_fqs/398 caller is __this_cpu_preempt_check+0x13/0x20 CPU: 3 PID: 398 Comm: rcu_torture_fqs Not tainted 6.0.0-rc1-yoctodev-standard+ Call Trace: <TASK> dump_stack_lvl+0x5b/0x86 dump_stack+0x10/0x16 check_preemption_disabled+0xe5/0xf0 __this_cpu_preempt_check+0x13/0x20 rcu_force_quiescent_state.part.0+0x1c/0x170 rcu_force_quiescent_state+0x1e/0x30 rcu_torture_fqs+0xca/0x160 ? rcu_torture_boost+0x430/0x430 kthread+0x192/0x1d0 ? kthread_complete_and_exit+0x30/0x30 ret_from_fork+0x22/0x30 </TASK> The problem is that rcu_force_quiescent_state() uses __this_cpu_read() in preemptible code instead of the proper raw_cpu_read(). This commit therefore changes __this_cpu_read() to raw_cpu_read().
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | linux | sid | 7.2.12-1 | fixed |
| Debian | linux | forky | 7.2.12-1 | fixed |
| Debian | linux | trixie | 6.12.107-1 | fixed |
| Debian | linux | trixie-security | 6.12.113-1 | fixed |
| Debian | linux | bookworm | 6.1.176-1 | fixed |
| Debian | linux | bookworm-security | 6.1.190-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | linux | source | sid | 6.1.4-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | forky | 6.1.4-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | trixie | 6.1.4-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | bookworm | 6.1.4-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [bpftool]Unknown
Source package: [linux]
Details (6)
7.1.0+6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
7.1.0+6.1.176-1· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
7.5.0+6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
7.5.0+6.12.95-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
7.1.0+6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
7.1.0+6.1.180-1· arm64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [hyperv-daemons]Unknown
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [intel-sdsi]Unknown
Source package: [linux]
Details (1)
6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [libcpupower1]Unknown
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [libcpupower-dev]Unknown
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-bpf-dev]Unknown
Source package: [linux]
Details (2)
6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-compiler-gcc-12-x86]Unknown
Source package: [linux]
Details (2)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-config-6.1]Unknown
Source package: [linux]
Details (4)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-cpupower]Unknown
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-doc]Unknown
Source package: [linux]
Details (32)
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.43-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.43-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.57-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.57-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.63-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.63-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.69-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.69-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.73-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.73-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.74-2~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.74-2~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.85-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.85-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.86-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.86-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.88-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.88-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.90-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.90-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.90-2~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.90-2~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.94-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.94-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.12.95-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· all · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· all · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-doc-6.1]Unknown
Source package: [linux]
Details (6)
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.176-1· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· all · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.180-1· all · bookworm-securityFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-amd64]Unknown
Source package: [linux]
Details (1)
6.1.170-3· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-arm64]Unknown
Source package: [linux]
Details (1)
6.1.170-3· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-cloud-amd64]Unknown
Source package: [linux]
Details (1)
6.1.170-3· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-cloud-arm64]Unknown
Source package: [linux]
Details (1)
6.1.170-3· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-common]Unknown
Source package: [linux]
Details (2)
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-common-rt]Unknown
Source package: [linux]
Details (2)
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
6.1.170-3· all · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-rt-amd64]Unknown
Source package: [linux]
Details (1)
6.1.170-3· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-47-rt-arm64]Unknown
Source package: [linux]
Details (1)
6.1.170-3· arm64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
- [linux-headers-6.1.0-50-amd64]Unknown
Source package: [linux]
Details (1)
6.1.176-1· amd64 · bookwormFixed · Fixed:
6.1.4-1dsa · linux · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_6583.json]
- [https://security-tracker.debian.org/tracker/CVE-2022-50771]
- [https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50771.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2929.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]