🛡️ AZL-77691 — kernel

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-23118 affecting package kernel 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix data-race warning and potential load/store tearing

Fix the following:

BUG: KCSAN: data-race in rxrpc_peer_keepalive_worker / rxrpc_send_data_packet

which is reporting an issue with the reads and writes to ->last_tx_at in:

conn->peer->last_tx_at = ktime_get_seconds();

and:

keepalive_at = peer->last_tx_at + RXRPC_KEEPALIVE_TIME;

The lockless accesses to these to values aren't actually a problem as the

read only needs an approximate time of last transmission for the purposes

of deciding whether or not the transmission of a keepalive packet is

warranted yet.

Also, as ->last_tx_at is a 64-bit value, tearing can occur on a 32-bit

arch.

Fix both of these by switching to an unsigned int for ->last_tx_at and only

storing the LSW of the time64_t. It can then be reconstructed at need

provided no more than 68 years has elapsed since the last transmission.

Affected software

AZL-77691 is recorded against 1 package.

  • kernel

Timeline and source

Published on 14 February 2026 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-02-14
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — —

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