CVE-2022-48639

net: sched: fix possible refcount leak in tc_new_tfilter()

MEDIUM
5.5
CVSS Score
Published: April 28, 2024 at 12:59 PM UTC
Updated: June 17, 2026 at 05:15 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: net: sched: fix possible refcount leak in tc_new_tfilter() tfilter_put need to be called to put the refount got by tp->ops->get to avoid possible refcount leak when chain->tmplt_ops != NULL and chain->tmplt_ops != tp->ops.

Affected

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

5.1 ≤ v < 5.10.1465.1 ≤ v < 5.15.715.1 ≤ v < 5.19.125.1 ≤ v < 5.4.2155.1 ≤ v < 6.05.11 ≤ v < 5.15.715.16 ≤ v < 5.19.125.5 ≤ v < 5.10.1466.0 rc16.0 rc26.0 rc36.0 rc46.0 rc56.0 rc67d5509fa0d3ddfe252b4418513e493ac98de3317
Vendor states this is fixed in 0559d91ee3a2cd81b15ad5cd507539d6da867f88 (fixed)
Vendor states this is fixed in 8844c750eeb03452e2b3319c27a526f447b82596 (fixed)
Vendor states this is fixed in 903f7d322c17d8e306d766404b4604e81653902a (fixed)
Vendor states this is fixed in c2e1cfefcac35e0eea229e148c8284088ce437b5 (fixed)
Vendor states this is fixed in f8162aed962be8fa07445b2b5928e84ab40dd8d7 (fixed)
Vendor states this is fixed in 5.1 (unaffected)
Vendor states this is fixed in 5.10.146 (unaffected)
Vendor states this is fixed in 5.15.71 (unaffected)
Vendor states this is fixed in 5.19.12 (unaffected)
Vendor states this is fixed in 5.4.215 (unaffected)
Vendor states this is fixed in 6.0 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0559d91ee3a2cd81b15ad5cd507539d6da867f88
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7

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
NVD-CWE-Other

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