Skip to content
fr Sign in
9.3 Critical

CVE-2026-99999 In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing…

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.

Affected products and versions

Product Affected versions Fixed in
Linux 7.3 earliest → < 7.3 7.3
Linux 7.2 earliest → < 7.2.11 7.2.11
Linux 6.18 earliest → < 6.18.57 6.18.57
Linux 6.12 earliest → < 6.12.113 6.12.113
Linux 6.6 earliest → < 6.6.159 6.6.159
Linux 6.1 earliest → < 6.1.190 6.1.190
Linux 5.15 earliest → < 5.15.223 5.15.223
Linux 5.10 earliest → < 5.10.272 5.10.272
Linux 2.6.27 No fix stated

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Linux

The 18283 CVEs of Linux →
CVE-2026-99270 In the Linux kernel, the following vulnerability has been resolved: tcp: Fix potential UAF in reqsk_timer_handler() 8.1 High CVE-2026-99269 In the Linux kernel, the following vulnerability has been resolved: sched_ext: Wait for SCX_OPSS_DISPATCHING before… 7.8 High CVE-2026-99261 In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: correct reservation fence slots for… Not rated CVE-2026-99260 In the Linux kernel, the following vulnerability has been resolved: ntfs: fix resident conversion in ntfs_new_attr_flags… Not rated
Track this CVE