7.5

CVE-2022-49084: qede: confirm skb is allocated before using

Modified
AliasesUBUNTU-CVE-2022-49084DEBIAN-CVE-2022-49084
Published 26-02-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-49084 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 52.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.67%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1241-1SUSE-SU-2025:1293-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL. Add a check in case build_skb() failed to allocate and return NULL. The NULL return is handled correctly in callers to qede_build_skb().

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.67%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.67% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu102 products
  • linux< 5.4.0-117.132 | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1078.84 | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < 9648adb1b3ece55c657d3a4f52bfee663b710dfe | ≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < 034a92c6a81048128fc7b18d278d52438a13902a | ≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < 8928239e5e2e460d95b8a0b89f61671625e7ece0 | ≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < c9bdce2359b5f4986eb38d1e81865b3586cc20d2 | ≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < b2d6b3db9d1cf80908964036dbe1c52a86b1afb1 | ≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < e1fd0c42acfa22bb34d2ab6a111484f466ab8093 | ≥ 8a8633978b842c88fbcfe00d4e5dde96048f630e, < 4e910dbe36508654a896d5735b318c0b88172570 | 4.18
  • linux_kernel≥ 4.18, < 4.19.238 | ≥ 4.20, < 5.4.189 | ≥ 5.5, < 5.10.111 | ≥ 5.11, < 5.15.34 | ≥ 5.16, < 5.16.20 | ≥ 5.17, < 5.17.3 | 5.18:rc1
Debian1 product
  • linux< 5.17.3-1

3 vendors · 105 products

References

11 links
Show all 11 references