7.8

CVE-2022-49275: can: m_can: m_can_tx_handler(): fix use after free of skb

Analyzed
AliasesUBUNTU-CVE-2022-49275DEBIAN-CVE-2022-49275
Published 26-02-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-49275 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.28%
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 8 · Related 7
RHSA-2023:2458SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1194-1SUSE-SU-2025:1241-1

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: can: m_can: m_can_tx_handler(): fix use after free of skb can_put_echo_skb() will clone skb then free the skb. Move the can_put_echo_skb() for the m_can version 3.0.x directly before the start of the xmit in hardware, similar to the 3.1.x branch.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.28% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu106 products
  • linuxAll versions (No fix recorded) | < 4.15.0-194.205 | < 5.4.0-128.144 | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1142.154 | < 5.4.0-1086.93 | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 80646733f11c2e9de3b6339f7e635047e6087280, < d93ed9aff64968f4cdad690712eb4f48ae537bde | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < d3892a747ab16b1eb6593a19d29f62c3b3f020ac | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < 7728d937ec403a1ceff9483023252d2cb8777f81 | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < 08d90846e438ac22dc56fc49ec0b0d195831c5ed | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < 869016a2938ac44f7b2fb7fc22c89edad99eb9b3 | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < f43e64076ff1b1dcb893fb77ad1204105f710a29 | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < 4db7d6f481990dd179a9ee7126dc7aa31ea4fff3 | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < 31417073493f302d26ab66b3abc098d43227b835 | ≥ 80646733f11c2e9de3b6339f7e635047e6087280, < 2e8e79c416aae1de224c0f1860f2e3350fa171f8 | 3.18
  • linux_kernel≥ 3.18, < 4.9.324 | ≥ 4.10, < 4.14.289 | ≥ 4.15, < 4.19.253 | ≥ 4.20, < 5.4.207 | ≥ 5.5, < 5.10.110 | ≥ 5.11, < 5.15.33 | ≥ 5.16, < 5.16.19 | ≥ 5.17, < 5.17.2
Debian1 product
  • linux< 5.17.3-1

3 vendors · 109 products

References

13 links
Show all 13 references