CVE-2022-49714

irqchip/realtek-rtl: Fix refcount leak in map_interrupts

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:24 AM UTC
Updated: June 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/realtek-rtl: Fix refcount leak in map_interrupts of_find_node_by_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. This function doesn't call of_node_put() in error path. Call of_node_put() directly after of_property_read_u32() to cover both normal path and error path.

Affected

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

5.12 ≤ v < 5.15.495.12 ≤ v < 5.18.65.12 ≤ v < 5.195.16 ≤ v < 5.18.65.19 rc15.19 rc29f3a0f34b84ad1b9a8f2bdae44b66f16685b2143
Vendor states this is fixed in e85b1b797de0e7a271b906291ce28245822820b8 (fixed)
Vendor states this is fixed in eff4780f83d0ae3e5b6c02ff5d999dc4c1c5c8ce (fixed)
Vendor states this is fixed in f6d6223df0666fbc054e3a8c6ac14eb0af37c286 (fixed)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.15.49 (unaffected)
Vendor states this is fixed in 5.18.6 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e85b1b797de0e7a271b906291ce28245822820b8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/eff4780f83d0ae3e5b6c02ff5d999dc4c1c5c8ce
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f6d6223df0666fbc054e3a8c6ac14eb0af37c286

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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