Vulnerability · Published Jun 24, 2026 · Assigned by Linux
CVE-2026-52993tipc: fix double-free in tipc_buf_append()
Critical 9.8
In plain English
A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 65.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one. In tipc_buf_append(), it was being called with a pointer to a local variable which was a copy of the caller's skb pointer. If the skb was reallocated and validation subsequently failed, the error handling path would free the original skb pointer, which had already been freed, leading to double-free. Fix this by checking if head now points to a newly allocated reassembled skb. If it does, reassign *headbuf for later freeing operations.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:10 | kernel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug-devel-matched | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-debug-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-devel-matched | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-64k-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-abi-stablelists | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-core | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-cross-headers | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-debug | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-debug | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-devel-matched | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-debug-uki-virt | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-devel | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-devel-matched | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-doc | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-doc | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-doc | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-headers | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-headers | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-headers | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-modules | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-modules-extra-matched | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:10 | kernel-rt | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-debug | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-debug | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-debug-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-debug-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-debug-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-debug-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-debug-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-debug-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-debug-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-64k-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-64k-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-debug | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-debug-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-debug-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-debug-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-debug-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-debug-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-rt-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-553.147.1.rt7.488.el8_10 | ALSA-2026:45116 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-tools | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-tools | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-tools | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-tools-libs | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-tools-libs-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-uki-virt | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-uki-virt-addons | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-uki-virt-addons | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump-devel | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump-devel-matched | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump-modules | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump-modules-core | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | kernel-zfcpdump-modules-extra | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | libperf | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | libperf | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | perf | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | perf | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | perf | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | python3-perf | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:8 | python3-perf | 4.18.0-553.147.1.el8_10 | ALSA-2026:45115 |
| AlmaLinux:9 | python3-perf | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | rtla | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | rtla | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| AlmaLinux:10 | rv | 6.12.0-211.40.1.el10_2 | ALSA-2026:47017 |
| AlmaLinux:9 | rv | 5.14.0-687.33.1.el9_8 | ALSA-2026:49212 |
| Debian:12 | linux | 6.1.176-1 | DEBIAN-CVE-2026-52993 |
| Debian:13 | linux | 6.12.94-1 | DEBIAN-CVE-2026-52993 |
| Debian:14 | linux | 7.0.10-1 | DEBIAN-CVE-2026-52993 |
| Rocky Linux:10 | kernel | 0:6.12.0-211.40.1.el10_2 | RLSA-2026:47017 |
| Rocky Linux:8 | kernel | 0:4.18.0-553.147.1.el8_10.cloud.0.1 | RXSA-2026:45115 |
| Rocky Linux:8 | kernel | 0:4.18.0-553.147.1.el8_10 | RLSA-2026:45115 |
| Rocky Linux:9 | kernel | 0:5.14.0-687.33.1.el9_8 | RLSA-2026:49212 |
| Rocky Linux:8 | kernel-rt | 0:4.18.0-553.147.1.rt7.488.el8_10 | RLSA-2026:45116 |
| Ubuntu:22.04:LTS | linux | 5.15.0-186.196 | UBUNTU-CVE-2026-52993 |
| Ubuntu:24.04:LTS | linux | 6.8.0-136.136 | UBUNTU-CVE-2026-52993 |
| Ubuntu:25.10 | linux | no fix listed | UBUNTU-CVE-2026-52993 |
| Ubuntu:26.04:LTS | linux | 7.0.0-28.28 | UBUNTU-CVE-2026-52993 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2026-52993 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1112.119 | UBUNTU-CVE-2026-52993 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1061.64 | UBUNTU-CVE-2026-52993 |
| Ubuntu:25.10 | linux-aws | no fix listed | UBUNTU-CVE-2026-52993 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | d618d09a68e4eed7a435beb2e355250f6f40664a – before a438975a6dcdbd70865978c021650d1485586f0bd618d09a68e4eed7a435beb2e355250f6f40664a – before 4ee4deadaae7cb2e3d53af0fc889cf92a73413c0d618d09a68e4eed7a435beb2e355250f6f40664a – before d3556656c6daebf8def751c7e71d11dd0a180d24d618d09a68e4eed7a435beb2e355250f6f40664a – before 0274f24485fc38032d4093e463dc3ff5c7a667c9d618d09a68e4eed7a435beb2e355250f6f40664a – before 4d104882bc815d4ec666ace9155f5f52715879a6d618d09a68e4eed7a435beb2e355250f6f40664a – before 1d5e589055880fae229e229e1929e087dbe08cf3d618d09a68e4eed7a435beb2e355250f6f40664a – before 29940fff14110ca48c5ccc168d121665b51bb778d618d09a68e4eed7a435beb2e355250f6f40664a – before d293ca716e7d5dffdaecaf6b9b2f857a33dc3d3a |
| Linux | Linux | 4.15 |
Weakness: CWE-763 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/stable/c/a438975a6dcdbd70865978c021650d1485586f0b
- https://git.kernel.org/stable/c/4ee4deadaae7cb2e3d53af0fc889cf92a73413c0
- https://git.kernel.org/stable/c/d3556656c6daebf8def751c7e71d11dd0a180d24
- https://git.kernel.org/stable/c/0274f24485fc38032d4093e463dc3ff5c7a667c9
- https://git.kernel.org/stable/c/4d104882bc815d4ec666ace9155f5f52715879a6
- https://git.kernel.org/stable/c/1d5e589055880fae229e229e1929e087dbe08cf3
- https://git.kernel.org/stable/c/29940fff14110ca48c5ccc168d121665b51bb778
- https://git.kernel.org/stable/c/d293ca716e7d5dffdaecaf6b9b2f857a33dc3d3a
- https://access.redhat.com/security/cve/CVE-2026-52993 vdb-entry, x_refsource_REDHAT
- RHBZ#2492437 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52993.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:47017 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:49212 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:45115 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:45116 vendor-advisory, x_refsource_REDHAT