cve-2024-40996
Vulnerability from cvelistv5
Published
2024-07-12 12:37
Modified
2024-12-19 09:09
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761Patch
Impacted products
Vendor Product Version
Linux Linux Version: 8af60bb2b215f478b886f1d6d302fefa7f0b917d
Version: 1b2b26595bb09febf14c5444c873ac4ec90a5a77
Version: 219eee9c0d16f1b754a8b85275854ab17df0850a
Version: 219eee9c0d16f1b754a8b85275854ab17df0850a
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   Linux Linux Version: 6.9
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