CVE-2022-49809

net/x25: Fix skb leak in x25_lapb_receive_frame()

MEDIUM

5.5

CVSS Score

Published: May 1, 2025 at 02:09 PM UTC

Updated: June 17, 2026 at 05:19 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix skb leak in x25_lapb_receive_frame() x25_lapb_receive_frame() using skb_copy() to get a private copy of skb, the new skb should be freed in the undersized/fragmented skb error handling path. Otherwise there is a memory leak.

Affected

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

Linux Kernel · Linux

95%

v ≥ 3.0.723.0.72 ≤ v < 3.13.1 ≤ v < 4.14.3003.1 ≤ v < 4.19.2673.1 ≤ v < 4.9.3343.1 ≤ v < 5.10.1563.1 ≤ v < 5.15.803.1 ≤ v < 5.4.2253.1 ≤ v < 6.0.103.1 ≤ v < 6.13.1.1 ≤ v < 4.9.3344.10 ≤ v < 4.14.3004.15 ≤ v < 4.19.2674.20 ≤ v < 5.4.2255.11 ≤ v < 5.15.805.16 ≤ v < 6.0.105.5 ≤ v < 5.10.1563.0.72 3.1 6.1 rc1 6.1 rc2 6.1 rc3 6.1 rc4 6.1 rc57f3ea0c12493c9ff38a13a89bcf08846b50c1f1ccb101ed2c3c7c0224d16953fe77bfb9d6c2cb9df

Vendor states this is fixed in 0ef17d966445358a55c5f4ccf2c73cca3e39192b (fixed)

Vendor states this is fixed in 2929cceb2fcf0ded7182562e4888afafece82cce (fixed)

Vendor states this is fixed in 2d675be16a461310d738d93f9f1a00da62055c5a (fixed)

Vendor states this is fixed in 9f00da9c866d506998bf0a3f699ec900730472da (fixed)

Vendor states this is fixed in c8baf1fc248b2e88642f094fea9509a9bf98c5bb (fixed)

Vendor states this is fixed in dfcfbe4f2e4b2c81cff4e79b48502d97fda73118 (fixed)

Vendor states this is fixed in e109b41870db995cae25dfaf0cc3922f9028b1a1 (fixed)

Vendor states this is fixed in fda0ba7c84b46d10947c687320804b9de149a921 (fixed)

Vendor states this is fixed in 3.1 (unaffected)

Vendor states this is fixed in 4.14.300 (unaffected)

Vendor states this is fixed in 4.19.267 (unaffected)

Vendor states this is fixed in 4.9.334 (unaffected)