CVE-2024-26602
sched/membarrier: reduce the ability to hammer on sys_membarrier
Reported by linux · Published February 24, 2024
In the Linux kernel, the following vulnerability has been resolved: sched/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| kernel-debug-devel | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| kernel-debug-core | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| perf | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| bpftool | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| kernel-libbpf | Amazon Linux | 6.1.79-99.164.amzn2023 |
| python3-perf-debuginfo | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| kernel-debuginfo | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| kernel-headers | Amazon Linux | 4.14.336-257.568.amzn2 |
| bpftool-debuginfo | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| kernel-livepatch-6.1.79-99.164 | Amazon Linux | 1.0-0.amzn2023 |
| python3-perf | errata.rockylinux.org | 4.18.0-553.123.1.el8 |
| kernel-livepatch-4.14.336-257.568 | Amazon Linux | 1.0-0.amzn2 |
7 more packages have a fixed version. See every fix in Lookup.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 22e4ebb975822833b083533035233d128b30e98f, 22e4ebb975822833b083533035233d128b30e98f, 22e4ebb975822833b083533035233d128b30e98f |
| Linux | Linux | 4.14, 0, 4.19.307 |
| amazon:2023 | kernel-libbpf | 0 |
| amazon:2 | kernel-headers | 0 |
| amazon:2023 | kernel-livepatch-6.1.79-99.164 | 0 |
| amazon:2 | kernel-livepatch-4.14.336-257.568 | 0 |
| amazon:2023 | kernel-devel | 0 |
| amazon:2023 | kernel | 0 |
| linux | linux_kernel | 4.14, 4.14, 4.14 |
| amazon:2 | kernel-devel | 0 |
| amazon:2 | perf | 0 |
| amazon:2023 | bpftool | 0 |
| amazon:2 | kernel-tools | 0 |
| amazon:2023 | python3-perf | 0 |
| amazon:2023 | kernel-modules-extra | 0 |
| Linux | Linux | 6.8, 22e4ebb975822833b083533035233d128b30e98f, 4.14 |
| amazon:2023 | kernel-modules-extra-common | 0 |
| amazon:2023 | kernel-libbpf-devel | 0 |
| amazon:2023 | kernel-tools | 0 |
| amazon:2023 | perf | 0 |
…and 6 more
Timeline
- Feb 24, 2024 CVE Published
- Feb 25, 2024 EPSS Score (30 in total, the first dated here)
- Oct 4, 2024 Coalition ESS Score (7 in total, the first dated here)
- Jan 15, 2026 Security Advisory (213 in total, the first dated here)
- Mar 30, 2026 Distribution Patch (202 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2024-26602
vulnetix vdb fixes CVE-2024-26602Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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