Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in smb2_close_cached_fid() find_or_create_cached_dir() could grab a new reference after kref_put() had seen the refcount drop to zero but before cfid_list_lock is acquired in smb2_close_cached_fid(), leading to use-after-free. Switch to kref_put_lock() so cfid_release() is called with cfid_list_lock held, closing that gap.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ebe98f1447bbccf8228335c62d86af02a0ed23f7 to < cb52d9c86d70298de0ab7c7953653898cbc0efd6affectedebe98f1447bbccf8228335c62d86af02a0ed23f7 to < 065bd62412271a2d734810dd50336cae88c54427affectedebe98f1447bbccf8228335c62d86af02a0ed23f7 to < bdb596ceb4b7c3f28786a33840263728217fbcf5affectedebe98f1447bbccf8228335c62d86af02a0ed23f7 to < 734e99623c5b65bf2c03e35978a0b980ebc3c2f8affected
Linux Linux
Default version status: affected
6.1affected0 to < 6.1unaffected6.6.117 to ≤ 6.6.*unaffected6.12.58 to ≤ 6.12.*unaffected6.17.8 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected