In the Linux kernel, the following vulnerability has been resolved:
erofs: fix interlaced plain identification for encoded extents
Only plain data whose start position and on-disk physical length are both aligned to the block size should be classified as interlaced plain extents. Otherwise, it must be treated as shifted plain extents.
This issue was found by syzbot using a crafted compressed image containing plain extents with unaligned physical lengths, which can cause OOB read in z_erofs_transform_plain().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18Upgrade bpftool6.18Upgrade python3-perf6.18-debuginfoUpgrade kernel6.18-modules-extraUpgrade perf6.18Upgrade python3-perf6.18Upgrade kernel6.18-libbpf-debuginfoUpgrade kernel-livepatch-6.18.16-18.222Upgrade kernel6.18-develUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-tools-develUpgrade kernel6.18-toolsUpgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-libbpf-staticUpgrade kernel6.18-libbpf-develUpgrade kernel6.18-headersUpgrade kernel6.18-debuginfoUpgrade bpftool6.18-debuginfoUpgrade kernel6.18-libbpfUpgrade perf6.18-debuginfoUpgrade kernel6.18-debuginfo-common-aarch64 | May 19, 2026 | May 6, 2026 |
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