Review reviewHigh

CVE-2024-47675

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free in bpf_uprobe_multi_link_attach() If bpf_link_prime() fails, bpf_uprobe_multi_link_attach() goes to the error_free label and frees the array of bpf_uprobe's without calling bpf_uprobe_unregister(). This leaks bpf_uprobe->uprobe and worse, this frees bpf_uprobe->consumer without removing it from the uprobe->consumers list.

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.10.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free in bpf_uprobe_multi_link_attach() If bpf_link_prime() fails, bpf_uprobe_multi_link_attach() goes to the error_free label and frees the array of bpf_uprobe's without calling bpf_uprobe_unregister(). This leaks bpf_uprobe->uprobe and worse, this frees bpf_uprobe->consumer without removing it from the uprobe->consumers list.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 89ae89f53d201143560f1e9ed4bfa62eee34f88e < 790c630ab0e7d7aba6d186581d4627c09fce60f3, >= 89ae89f53d201143560f1e9ed4bfa62eee34f88e < 7c1d782e5afbf7c50ba74ecc4ddc18a05d63e5ee, >= 89ae89f53d201143560f1e9ed4bfa62eee34f88e < cdf27834c3dd5d9abf7eb8e4ee87ee9e307eb25c, >= 89ae89f53d201143560f1e9ed4bfa62eee34f88e < 5fe6e308abaea082c20fbf2aa5df8e14495622cf, >= 6.6, >= 6.6 < 6.6.54, >= 6.7 < 6.10.13, >= 6.11 < 6.11.2
Fixed versions
6.6.54, 6.10.13, 6.11.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416
CVE-2024-47675 — Linux Linux, linux kernel | SECUFOCUS NOW