Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() Commit 96c4af418586 ("cifs: Fix locking usage for tcon fields") refactored cifs code to change cifs_tcp_ses_lock for tc_lock around tc_count changes. There was missing lock around tc_count increment inside smb2_find_smb_sess_tcon_unlocked().
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-64136 ↗
- git.kernel.org/stable/c/13fb413ae22a37c69341918a6d651d19a9b0b9b7 ↗
- git.kernel.org/stable/c/4d8690dace005a38e6dbde9ecce2da3ad85c7c41 ↗
- git.kernel.org/stable/c/7585d4242f59185b084957fa077396e53dbf7c24 ↗
- git.kernel.org/stable/c/7df1df6f40c0720d30206aa35c0343b962350e0d ↗
- git.kernel.org/stable/c/bf4ebdb19ff9b3cdf992b50715fe61633327416a ↗
- git.kernel.org/stable/c/e374f4e496fef8168784f93a4477d67be34485fd ↗
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