bpf: Fix use-after-free in bpf_uprobe_multi_link_attach()
Published Oct 21, 2024 · Updated Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved:
Summary
What happened
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.
The record
- CVE
- CVE-2024-47675
- Published
- Oct 21, 2024
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Oct 21, 2024CVE publishedPublication date reported by the CVE source.
- Aug 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.6
- Affected versionversion=89ae89f53d201143560f1e9ed4bfa62eee34f88e <5fe6e308abaea082c20fbf2aa5df8e14495622cf
- Affected versionversion=89ae89f53d201143560f1e9ed4bfa62eee34f88e <790c630ab0e7d7aba6d186581d4627c09fce60f3
- Affected versionversion=89ae89f53d201143560f1e9ed4bfa62eee34f88e <7c1d782e5afbf7c50ba74ecc4ddc18a05d63e5ee
- Affected versionversion=89ae89f53d201143560f1e9ed4bfa62eee34f88e <cdf27834c3dd5d9abf7eb8e4ee87ee9e307eb25c
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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