CVE-2024-50294

rxrpc: Fix missing locking causing hanging calls

MEDIUM
4.7
CVSS Score
Published: November 19, 2024 at 01:30 AM UTC
Updated: August 5, 2026 at 12:05 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix missing locking causing hanging calls If a call gets aborted (e.g. because kafs saw a signal) between it being queued for connection and the I/O thread picking up the call, the abort will be prioritised over the connection and it will be removed from local->new_client_calls by rxrpc_disconnect_client_call() without a lock being held. This may cause other calls on the list to disappear if a race occurs. Fix this by taking the client_call_lock when removing a call from whatever list its ->wait_link happens to be on.

Affected

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

6.2 ≤ v < 6.11.86.2 ≤ v < 6.126.2 ≤ v < 6.6.616.2.1 ≤ v < 6.6.616.7 ≤ v < 6.11.86.12 rc16.12 rc26.12 rc36.12 rc46.12 rc56.12 rc66.26.2 rc46.2 rc56.2 rc66.2 rc76.2 rc89d35d880e0e4a3ab32d8c12f9e4d76198aadd42d
Vendor states this is fixed in 996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92 (fixed)
Vendor states this is fixed in b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8b (fixed)
Vendor states this is fixed in fc9de52de38f656399d2ce40f7349a6b5f86e787 (fixed)
Vendor states this is fixed in 6.11.8 (unaffected)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.2 (unaffected)
Vendor states this is fixed in 6.6.61 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fc9de52de38f656399d2ce40f7349a6b5f86e787

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.7MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-667

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