CVE-2022-50388 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

Description

In the Linux kernel, the following vulnerability has been resolved: nvme: fix multipath crash caused by flush request when blktrace is enabled The flush request initialized by blk_kick_flush has NULL bio, and it may be dealt with nvme_end_req during io completion. When blktrace is enabled, nvme_trace_bio_complete with multipath activated trying to access NULL pointer bio from flush request results in the following crash: [ 2517.831677] BUG: kernel NULL pointer dereference, address: 0000000000…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel5.4 — 5.10.163+4
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linux35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd — f13301a69ababa6c2236fb4f0393b7e914e7e1e0+5
▶debiandebian/linux< linux 6.1.7-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-m224-9cff-885m: In the Linux kernel, the following vulnerability has been resolved: nvme: fix multipath crash caused by flush request when blktrace is enabled The f↗2025-09-18
▶
OSV
CVE-2022-50388: In the Linux kernel, the following vulnerability has been resolved: nvme: fix multipath crash caused by flush request when blktrace is enabled The flu↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: nvme: fix multipath crash caused by flush request when blktrace is enabled↗2025-09-18
▶
Debian
CVE-2022-50388: linux - In the Linux kernel, the following vulnerability has been resolved: nvme: fix m...↗2022
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CVE-2022-50388 — NULL Pointer Dereference in Linux | cvebase