CVE-2022-49008

can: can327: can327_feed_frame_to_netdev(): fix potential skb leak when netdev is down

MEDIUM
5.5
CVSS Score
Published: October 21, 2024 at 08:06 PM UTC
Updated: June 17, 2026 at 05:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: can: can327: can327_feed_frame_to_netdev(): fix potential skb leak when netdev is down In can327_feed_frame_to_netdev(), it did not free the skb when netdev is down, and all callers of can327_feed_frame_to_netdev() did not free allocated skb too. That would trigger skb leak. Fix it by adding kfree_skb() in can327_feed_frame_to_netdev() when netdev is down. Not tested, just compiled.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.0 ≤ v < 6.0.126.0 ≤ v < 6.143da2f07622f41376c7ddab8f73dc2b1d3ab97156.1 rc16.1 rc26.1 rc36.1 rc46.1 rc56.1 rc66.1 rc7
Vendor states this is fixed in 797b1d9fc0e1f4351e4ad49b078c1a3cdc0d4a08 (fixed)
Vendor states this is fixed in 8fa452cfafed521aaf5a18c71003fe24b1ee6141 (fixed)
Vendor states this is fixed in 6.0 (unaffected)
Vendor states this is fixed in 6.0.12 (unaffected)
Vendor states this is fixed in 6.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/797b1d9fc0e1f4351e4ad49b078c1a3cdc0d4a08
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8fa452cfafed521aaf5a18c71003fe24b1ee6141

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

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