5.5

CVE-2024-26591: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-26591DEBIAN-CVE-2024-26591
Published 22-02-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-26591 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 12
RHSA-2024:9315SUSE-SU-2024:0855-1SUSE-SU-2024:0858-1SUSE-SU-2024:0900-1SUSE-SU-2024:0900-2SUSE-SU-2024:0910-1

Timeline

  1. 22-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix re-attachment branch in bpf_tracing_prog_attach The following case can cause a crash due to missing attach_btf: 1) load rawtp program 2) load fentry program with rawtp as target_fd 3) create tracing link for fentry program with target_fd = 0 4) repeat 3 In the end we have: - prog->aux->dst_trampoline == NULL - tgt_prog == NULL (because we did not provide target_fd to link_create) - prog->aux->attach_btf == NULL (the program was loaded with attach_prog_fd=X) - the program was loaded for tgt_prog but we have no way to find out which one BUG: kernel NULL pointer dereference, address: 0000000000000058 Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x15b/0x430 ? fixup_exception+0x22/0x330 ? exc_page_fault+0x6f/0x170 ? asm_exc_page_fault+0x22/0x30 ? bpf_tracing_prog_attach+0x279/0x560 ? btf_obj_id+0x5/0x10 bpf_tracing_prog_attach+0x439/0x560 __sys_bpf+0x1cf4/0x2de0 __x64_sys_bpf+0x1c/0x30 do_syscall_64+0x41/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Return -EINVAL in this situation.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu104 products
  • linux< 5.15.0-102.112
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1057.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f3a95075549e0e5c36db922caf86847db7a35403, < a7b98aa10f895e2569403896f2d19b73b6c95653 | ≥ f3a95075549e0e5c36db922caf86847db7a35403, < 6cc9c0af0aa06f781fa515a1734b1a4239dfd2c0 | ≥ f3a95075549e0e5c36db922caf86847db7a35403, < 8c8bcd45e9b10eef12321f08d2e5be33d615509c | ≥ f3a95075549e0e5c36db922caf86847db7a35403, < 50ae82f080cf87e84828f066c31723b781d68f5b | ≥ f3a95075549e0e5c36db922caf86847db7a35403, < 715d82ba636cb3629a6e18a33bb9dbe53f9936ee | 5.13
  • linux_kernel< 5.15.148 | ≥ 5.16.0, < 6.1.75 | ≥ 6.2.0, < 6.6.14 | ≥ 6.7.0, < 6.7.2
Debian1 product
  • linux< 6.1.76-1 | < 6.6.15-1

3 vendors · 107 products

References

14 links
Show all 14 references