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TI-2023-29066 Aliases CVE-2023-52735GHSA-47rw-4rpj-m5g9

bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself

Priority MEDIUM 48CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Partial Red Hat: 5 fixed, 2 without a fix

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

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself sock_map proto callbacks should never call themselves by design. Protect against bugs like [1] and break out of the recursive loop to avoid a stack overflow in favor of a resource leak. [1] https://lore.kernel.org/all/[email protected]/

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01219 68th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.15.95, 5.15, 6.1.13 +1Red Hat: 3 advisoriesRed Hat: 5 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.15.3 to before 5.15.95; 5.14.19 to before 5.155.15.95, 5.15Patch availableCNA
LinuxLinux5.16 and later5.15.95, 6.1.13, 6.2Patch availableCNA
  • Linux VendorLinux Affected 5.15.3 to before 5.15.95; 5.14.19 to before 5.15 Fixed in 5.15.95, 5.15 Patch available CNA
  • Linux VendorLinux Affected 5.16 and later Fixed in 5.15.95, 6.1.13, 6.2 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 5.15.95; 5.16 to before 6.1.13VulnerableLinux
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: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:*:*:*:*:*:*:*:* Versions before 5.15.95; 5.16 to before 6.1.13 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
  • 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 5.15.95, 5.15
  • Fix · CNA Linux (Linux) Fixed in 5.15.95, 6.1.13, 6.2

Red Hat 3 advisories

  • RHSA-2024:5672 Released 2024-08-21 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.80.1.el9_2
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.80.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.80.1.el9_2, kernel-64k-devel-5.14.0-284.80.1.el9_2 +9
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.80.1.el9_2, kernel-5.14.0-284.80.1.el9_2, kernel-64k-5.14.0-284.80.1.el9_2 +29
  • RHSA-2024:5673 Released 2024-08-21 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-core-5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-debug-5.14.0-284.80.1.rt14.365.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-core-5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-debug-5.14.0-284.80.1.rt14.365.el9_2 +11
  • RHSA-2023:6583 Released 2023-11-07 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-362.8.1.el9_3, libperf-5.14.0-362.8.1.el9_3
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-362.8.1.el9_3, kernel-64k-debug-devel-matched-5.14.0-362.8.1.el9_3, kernel-64k-devel-5.14.0-362.8.1.el9_3 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.2.0-362.8.1.el9_3, kernel-5.14.0-362.8.1.el9_3, kernel-64k-5.14.0-362.8.1.el9_3 +29
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-362.8.1.el9_3, kernel-rt-core-5.14.0-362.8.1.el9_3, kernel-rt-debug-5.14.0-362.8.1.el9_3 +9
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-362.8.1.el9_3, kernel-rt-core-5.14.0-362.8.1.el9_3, kernel-rt-debug-5.14.0-362.8.1.el9_3 +11

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:5672
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:5672
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2024:5672
Red Hat Enterprise Linux Real Time EUS (v.9.2)Fixed RHSA-2024:5673
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2)Fixed RHSA-2024:5673
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux AppStream EUS (v.9.2)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-52735
  2. 2026-10-03 Alias added: GHSA-47rw-4rpj-m5g9

References

Patch 3

  • 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