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Medium severity5.5NVD Advisory· Published May 1, 2026· Updated May 6, 2026

CVE-2026-31710

CVE-2026-31710

Description

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix dir separator in SMB1 UNIX mounts

When calling cifs_mount_get_tcon() with SMB1 UNIX mounts, @cifs_sb->mnt_cifs_flags needs to be read or updated only after calling reset_cifs_unix_caps(), otherwise it might end up with missing CIFS_MOUNT_POSIXACL and CIFS_MOUNT_POSIX_PATHS bits.

This fixes the wrong dir separator used in paths caused by the missing CIFS_MOUNT_POSIX_PATHS bit in cifs_sb_info::mnt_cifs_flags.

AI Insight

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Affected products

9
  • Linux/Kernel8 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=7.0.1,<7.0.2
    • cpe:2.3:o:linux:linux_kernel:7.0:-:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
  • osv-coords
    pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweed
    Range: < 7.0.7-1.1

Patches

Vulnerability mechanics

References

2

News mentions

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