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CVE-2026-31710

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0af28e51d1146f86510e5d44cc077e45d6bd301dc61bc6ab3cd41c768bb1287f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/connect.c","fs/smb/client/smb1ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fbbfcf35e1ee3396631f3dc6214cb626aa9814c3","status":"affected","version":"4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880","versionType":"git"},{"lessThan":"c4d3fc5844d685441befd0caaab648321013cdfd","status":"affected","version":"4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c85e1f9b6149732d2ca4c0e2baaa2ed04f3b955419a6b5db22527a30b967bd0f · sha256:7d1480458dab453f… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/connect.c","fs/smb/client/smb1ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c85e1f9b6149732d2ca4c0e2baaa2ed04f3b955419a6b5db22527a30b967bd0f · sha256:7d1480458dab453f… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/connect.c","fs/smb/client/smb1ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fbbfcf35e1ee3396631f3dc6214cb626aa9814c3","status":"affected","version":"4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880","versionType":"git"},{"lessThan":"c4d3fc5844d685441befd0caaab648321013cdfd","status":"affected","version":"4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c85e1f9b6149732d2ca4c0e2baaa2ed04f3b955419a6b5db22527a30b967bd0f · sha256:7d1480458dab453f… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/connect.c","fs/smb/client/smb1ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c85e1f9b6149732d2ca4c0e2baaa2ed04f3b955419a6b5db22527a30b967bd0f · sha256:7d1480458dab453f… · /containers/cna/affected/1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/c4d3fc5844d685441befd0caaab648321013cdfd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c85e1f9b6149732d2ca4c0e2baaa2ed04f3b955419a6b5db22527a30b967bd0f · sha256:7d1480458dab453f… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/fbbfcf35e1ee3396631f3dc6214cb626aa9814c3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c85e1f9b6149732d2ca4c0e2baaa2ed04f3b955419a6b5db22527a30b967bd0f · sha256:7d1480458dab453f… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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