CVE-2024-40996

linux: In the Linux kernel, the following vulnerability has been resolved: bpf: Avoid splat in pskb_pull_reason syzkaller...

CVE-2024-40996 is fixed in 22 products on 1 platform, first by DEBIAN-CVE-2024-40996, released July 12, 2024. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0028
20th percentile

In the Linux kernel, the following vulnerability has been resolved: bpf: Avoid splat in pskb_pull_reason syzkaller builds (CONFIG_DEBUG_NET=y) frequently trigger a debug hint in pskb_may_pull. We'd like to retain this debug check because it might hint at integer overflows and other issues (kernel code should pull headers, not huge value). In bpf case, this splat isn't interesting at all: such (nonsensical) bpf programs are typically generated by a fuzzer anyway. Do what Eric suggested and suppress such warning. For CONFIG_DEBUG_NET=n we don't need the extra check because pskb_may_pull will do the right thing: return an error without the WARN() backtrace.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
bpftool-debuginfo · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-debuginfo · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-debuginfo-common-aarch64 · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-debuginfo-common-x86_64 · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-devel · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-headers · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-libbpf · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-libbpf-devel · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-libbpf-static · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-livepatch-6.1.96-102.177 · amzn 2023 1.0-0.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-modules-extra · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-modules-extra-common · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-tools · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-tools-debuginfo · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
kernel-tools-devel · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
linux · Debian 12.15 (bookworm) 6.1.99-1 DEBIAN-CVE-2024-40996 Jul 12, 2024
linux · Debian 13.5 (trixie) 6.9.7-1 DEBIAN-CVE-2024-40996 Jul 12, 2024
linux · Debian 14 6.9.7-1 DEBIAN-CVE-2024-40996 Jul 12, 2024
perf · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
perf-debuginfo · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
python3-perf · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025
python3-perf-debuginfo · amzn 2023 6.1.96-102.177.amzn2023 ALAS2023-2025-836 Jan 30, 2025

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