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Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL. Fix this by check if 'lease_ctx_info' is NULL. Additionally, remove the redundant parentheses in parse_durable_handle_context().

PUBLISHED Reserved 2024-09-11 | Published 2024-09-18 | Updated 2025-11-03 | Assigner Linux

Product status

Default status
unaffected

0626e6641f6b467447c81dd7678a69c66f7746cf (git) before 878f32878351104448b86ef5b85d1f8ed6f599fb
affected

0626e6641f6b467447c81dd7678a69c66f7746cf (git) before ec28c35029b7930f31117f9284874b63bea4f31b
affected

0626e6641f6b467447c81dd7678a69c66f7746cf (git) before 07f384c5be1f8633b13f0a22616e227570450bc6
affected

0626e6641f6b467447c81dd7678a69c66f7746cf (git) before 3b692794b81f2ecad69a4adbba687f3836824ada
affected

0626e6641f6b467447c81dd7678a69c66f7746cf (git) before 4e8771a3666c8f216eefd6bd2fd50121c6c437db
affected

Default status
affected

5.15
affected

Any version before 5.15
unaffected

5.15.181 (semver)
unaffected

6.1.135 (semver)
unaffected

6.6.51 (semver)
unaffected

6.10.10 (semver)
unaffected

6.11 (original_commit_for_fix)
unaffected

References

lists.debian.org/debian-lts-announce/2025/05/msg00045.html

git.kernel.org/...c/878f32878351104448b86ef5b85d1f8ed6f599fb

git.kernel.org/...c/ec28c35029b7930f31117f9284874b63bea4f31b

git.kernel.org/...c/07f384c5be1f8633b13f0a22616e227570450bc6

git.kernel.org/...c/3b692794b81f2ecad69a4adbba687f3836824ada

git.kernel.org/...c/4e8771a3666c8f216eefd6bd2fd50121c6c437db

cve.org (CVE-2024-46742)

nvd.nist.gov (CVE-2024-46742)