CVE-2022-49356: SUNRPC: Trap RDMA segment overflows
Vulnerability summary
CVE-2022-49356 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 52.3% of scored vulnerabilities.
Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.68%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.68% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu94 products
- linux< 5.15.0-48.54
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1020.24
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 7a1cbfa18059a40d4752dab057384c3ca2de326c, < ea26bf5eca1459b5a7824997d7823409ce38214e | ≥ 7a1cbfa18059a40d4752dab057384c3ca2de326c, < 812c13521d4a72469c78ce06d8cdc8dc5b5557b5 | ≥ 7a1cbfa18059a40d4752dab057384c3ca2de326c, < 659f7568e09593945c221bf20217a82ebdfe1328 | ≥ 7a1cbfa18059a40d4752dab057384c3ca2de326c, < f012e95b377c73c0283f009823c633104dedb337 | 5.11
- linux_kernel≥ 5.11, < 5.15.47 | ≥ 5.16, < 5.17.15 | ≥ 5.18, < 5.18.4 | 5.19:rc1
Debian1 product
- linux< 5.18.5-1
3 vendors · 97 products
