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CVE-2022-50849

11
FAUCET Score

CVE-2022-50849 is a Linux kernel vulnerability in the pstore subsystem, specifically affecting devices using the ram backend. It allows for a kernel oops (system crash) when attempting to read from /proc/kcore due to incorrect memory mapping assumptions. The vulnerability has a low severity, as it requires local access to trigger the crash and the impact is limited to system instability rather than data compromise or privilege escalation. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
3.4CNA affecteddefault affected
LinuxLinux
>= 404a6043385de17273624b076599669db5ad891f, < 1579bed1613802a323a1e14567faa95c149e105e, >= 404a6043385de17273624b076599669db5ad891f, < 295f59cd2cdeed841850d02dddde3a122cbf6fc6, >= 404a6043385de17273624b076599669db5ad891f, < 2f82381d0681b10f9ddd27be98c27363b5a3cd1c, >= 404a6043385de17273624b076599669db5ad891f, < 4d3126f242a0090342ffe925c35fb4f4252b7562, >= 404a6043385de17273624b076599669db5ad891f, < 69dbff7d2681c55a4d979fd9b75576303e69979f, >= 404a6043385de17273624b076599669db5ad891f, < 6d9460214e363e1f3d0756ee5d947e76e3e6f86c, >= 404a6043385de17273624b076599669db5ad891f, < e6b842741b4f39007215fd7e545cb55aa3d358a2, >= 404a6043385de17273624b076599669db5ad891f, < ebc73c4f266281e2cad1a372ecd81572d95375b6, >= 404a6043385de17273624b076599669db5ad891f, < fdebcc33b663d2e8da937653ddfbfc1315047eaaCNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Patches (6)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50849Moderate

kernel: pstore: Avoid kcore oops by vmap()ing with VM_IOREMAP

Dec 30, 2025

References

git.kernel.org / stable/c/1579bed1613802a323a1e14567faa95c149e105e
git.kernel.org / stable/c/295f59cd2cdeed841850d02dddde3a122cbf6fc6
git.kernel.org / stable/c/2f82381d0681b10f9ddd27be98c27363b5a3cd1c
git.kernel.org / stable/c/4d3126f242a0090342ffe925c35fb4f4252b7562
git.kernel.org / stable/c/69dbff7d2681c55a4d979fd9b75576303e69979f
git.kernel.org / stable/c/6d9460214e363e1f3d0756ee5d947e76e3e6f86c
git.kernel.org / stable/c/e6b842741b4f39007215fd7e545cb55aa3d358a2
git.kernel.org / stable/c/ebc73c4f266281e2cad1a372ecd81572d95375b6
git.kernel.org / stable/c/fdebcc33b663d2e8da937653ddfbfc1315047eaa