CVE-2022-49356
CVE-2022-49356 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (16th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-54873
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Trap RDMA segment overflows Prevent svc_rdma_build_writes() from walking off the end of a Write chunk's segment array. Caught with KASAN. The test that this fix replaces is invalid, and might have been left over from an earlier prototype of the PCL work.
Frequently asked questions
- What is CVE-2022-49356?
- In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Trap RDMA segment overflows Prevent svc_rdma_build_writes() from walking off the end of a Write chunk's segment array. Caught with KASAN. The test that this fix replaces is invalid, and might have been left over from an earlier prototype of the PCL work.
- How severe is CVE-2022-49356?
- CVE-2022-49356 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-49356 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-49356?
- CVE-2022-49356 primarily affects Linux Linux Kernel. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-49356?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2022-49356 have an EU (EUVD) identifier?
- Yes. CVE-2022-49356 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-54873.
- When was CVE-2022-49356 published?
- CVE-2022-49356 was published on 2025-02-26 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/659f7568e09593945c221bf20217a82ebdfe1328
- https://git.kernel.org/stable/c/812c13521d4a72469c78ce06d8cdc8dc5b5557b5
- https://git.kernel.org/stable/c/ea26bf5eca1459b5a7824997d7823409ce38214e
- https://git.kernel.org/stable/c/f012e95b377c73c0283f009823c633104dedb337
Affected products (2)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
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