Linux Kernel libbpf btf_dump.c btf_dump_name_dups use after free
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and 6.2 is sufficient to resolve this issue. The identifier of the patch is c61650b869e0b6fb0c0a28ed42d928eea969afc8/fbe08093fb2334549859829ef81d42570812597d/8c64a8e76eb85d422af5ec60ccbf26e3ead8c333/a733bf10198eb5bb927890940de8ab457491ed3b/93c660ca40b5d2f7c1b1626e955a8e9fa30e0749. You should upgrade the affected component.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Kernel | 5.10.162; 5.15.0; 5.15.1; 5.15.2; 5.15.3; 5.15.4; 5.15.5; 5.15.6; 5.15.7; 5.15.8; 5.15.9; 5.15.10; 5.15.11; 5.15.12; 5.15.13; 5.15.14; 5.15.15; 5.15.16; 5.15.17; 5.15.18; 5.15.19; 5.15.20; 5.15.21; 5.15.22; 5.15.23; 5.15.24; 5.15.25; 5.15.26; 5.15.27; 5.15.28; 5.15.29; 5.15.30; 5.15.31; 5.15.32; 5.15.33; 5.15.34; 5.15.35; 5.15.36; 5.15.37; 5.15.38; 5.15.39; 5.15.40; 5.15.41; 5.15.42; 5.15.43; 5.15.44; 5.15.45; 5.15.46; 5.15.47; 5.15.48; 5.15.49; 5.15.50; 5.15.51; 5.15.52; 5.15.53; 5.15.54; 5.15.55; 5.15.56; 5.15.57; 5.15.58; 5.15.59; 5.15.60; 5.15.61; 5.15.62; 5.15.63; 5.15.64; 5.15.65; 5.15.66; 5.15.67; 5.15.68; 5.15.69; 5.15.70; 5.15.71; 5.15.72; 5.15.73; 5.15.74; 5.15.75; 5.15.76; 5.15.77; 5.15.78; 5.15.79; 5.15.80; 5.15.81; 5.15.82; 5.15.83; 5.15.84; 5.15.85; 6.0.0; 6.0.1; 6.0.2; 6.0.3; 6.0.4; 6.0.5; 6.0.6; 6.0.7; 6.0.8; 6.0.9; 6.0.10; 6.0.11; 6.0.12; 6.0.13; 6.0.14; 6.0.15; 6.1.0; 6.1.1 | 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 | Patch available | CNA |
- Kernel VendorLinux Affected 5.10.162; 5.15.0; 5.15.1; 5.15.2; 5.15.3; 5.15.4; 5.15.5; 5.15.6; 5.15.7; 5.15.8; 5.15.9; 5.15.10; 5.15.11; 5.15.12; 5.15.13; 5.15.14; 5.15.15; 5.15.16; 5.15.17; 5.15.18; 5.15.19; 5.15.20; 5.15.21; 5.15.22; 5.15.23; 5.15.24; 5.15.25; 5.15.26; 5.15.27; 5.15.28; 5.15.29; 5.15.30; 5.15.31; 5.15.32; 5.15.33; 5.15.34; 5.15.35; 5.15.36; 5.15.37; 5.15.38; 5.15.39; 5.15.40; 5.15.41; 5.15.42; 5.15.43; 5.15.44; 5.15.45; 5.15.46; 5.15.47; 5.15.48; 5.15.49; 5.15.50; 5.15.51; 5.15.52; 5.15.53; 5.15.54; 5.15.55; 5.15.56; 5.15.57; 5.15.58; 5.15.59; 5.15.60; 5.15.61; 5.15.62; 5.15.63; 5.15.64; 5.15.65; 5.15.66; 5.15.67; 5.15.68; 5.15.69; 5.15.70; 5.15.71; 5.15.72; 5.15.73; 5.15.74; 5.15.75; 5.15.76; 5.15.77; 5.15.78; 5.15.79; 5.15.80; 5.15.81; 5.15.82; 5.15.83; 5.15.84; 5.15.85; 6.0.0; 6.0.1; 6.0.2; 6.0.3; 6.0.4; 6.0.5; 6.0.6; 6.0.7; 6.0.8; 6.0.9; 6.0.10; 6.0.11; 6.0.12; 6.0.13; 6.0.14; 6.0.15; 6.1.0; 6.1.1 Fixed in 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2 Patch available CNA
Remediation
- Fix · CNA Kernel (Linux) Fixed in 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2022-3534
- 2026-10-03 Alias added: GHSA-gfpq-px23-jj9f
References
More Linux Kernel vulnerabilities
- 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
Sources
- CVE-2022-3534 · CVE Program
- CVE-2022-3534 · NVD
- FIRST EPSS
- GHSA-gfpq-px23-jj9f · GitHub Advisory Database · CC BY 4.0
- CVE-2022-3534 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences