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TI-2023-29261 Aliases CVE-2023-52941GHSA-mh69-q9mq-74wg

can: isotp: split tx timer into transmission and timeout

Priority LOW 24Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 5 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: can: isotp: split tx timer into transmission and timeout The timer for the transmission of isotp PDUs formerly had two functions: 1. send two consecutive frames with a given time gap 2. monitor the timeouts for flow control frames and the echo frames This led to larger txstate checks and potentially to a problem discovered by syzbot which enabled the panic_on_warn feature while testing. The former 'txtimer' function is split into 'txfrtimer' and 'txtimer' to handle the two above functionalities with separate timer callbacks. The two simplified timers now run in one-shot mode and make the state transitions (especially with isotp_rcv_echo) better understandable.

Why it matters now

EPSS 0.00215 12th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1, 6.1.11, 6.2Red Hat: 1 advisoryRed Hat: 5 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.0.9 to before 6.16.1Patch availableCNA
LinuxLinux6.1 and later6.1.11, 6.2Patch availableCNA
  • Linux VendorLinux Affected 6.0.9 to before 6.1 Fixed in 6.1 Patch available CNA
  • Linux VendorLinux Affected 6.1 and later Fixed in 6.1.11, 6.2 Patch available CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.0.9 to before 6.1; 6.1.1 to before 6.1.11VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:*6.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*6.1 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*6.1 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*6.1 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*6.1 rc8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*6.2 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*6.2 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*6.2 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*6.2 rc4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.0.9 to before 6.1; 6.1.1 to before 6.1.11 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:-:*:*:*:*:*:* Versions 6.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* Versions 6.1 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* Versions 6.1 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:* Versions 6.1 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:* Versions 6.1 rc8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* Versions 6.2 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* Versions 6.2 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* Versions 6.2 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:* Versions 6.2 rc4 Vulnerable ·Linux
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*6.2 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*6.2 rc6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:* Versions 6.2 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:* Versions 6.2 rc6 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1
  • Fix · CNA Linux (Linux) Fixed in 6.1.11, 6.2

Red Hat 1 advisory

  • RHSA-2025:20518 Released 2025-11-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.5.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.5.1.el9_7, kernel-64k-devel-5.14.0-611.5.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.5.1.el9_7, kernel-64k-5.14.0-611.5.1.el9_7, kernel-64k-core-5.14.0-611.5.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.5.1.el9_7, libperf-5.14.0-611.5.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.5.1.el9_7, kernel-rt-64k-5.14.0-611.5.1.el9_7, kernel-rt-64k-core-5.14.0-611.5.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.5.1.el9_7, kernel-rt-core-5.14.0-611.5.1.el9_7, kernel-rt-debug-5.14.0-611.5.1.el9_7 +9

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:20518
Not affected: 4 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-52941
  2. 2026-10-03 Alias added: GHSA-mh69-q9mq-74wg

References

Patch 2

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences