| Name | CVE-2026-98681 |
| Description | In the Linux kernel, the following vulnerability has been resolved: smb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races The invalidHandle, swapfile, oplock_break_cancelled, offload, and status_file_deleted fields are stored in the same bitfield byte in struct cifsFileInfo, but are updated in different code paths that may run simultaneously, and are protected by different locks. Since bitfield assignments generate byte-level read-modify-write operations, a modification to one flag can overwrite a concurrent modification to another flag. To avoid these races, convert these flags from a bitfield to separate bool fields. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4850-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bookworm | 6.1.176-1 | vulnerable |
| bookworm (security) | 6.1.190-1 | vulnerable | |
| trixie | 6.12.107-1 | vulnerable | |
| trixie (security) | 6.12.115-2 | fixed | |
| forky | 7.2.15-1 | fixed | |
| sid | 7.3.3-1 | fixed | |
| linux-6.12 (PTS) | bookworm (security) | 6.12.115-2~deb12u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | trixie | 6.12.113-1 | |||
| linux | source | (unstable) | 7.2.10-1 | |||
| linux-6.12 | source | bookworm | 6.12.113-1~deb12u1 | DLA-4850-1 |
https://git.kernel.org/linus/19465a9aeb664f1d710d0d22c07c31bfb7c85446 (7.3-rc6)