Tracker / CVE-2026-64136
CVE-2026-64136
Critical 9.8
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().
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.12.75 → 6.12.92 |
| linux | linux_kernel · 6.18.16 → 6.18.34 |
| linux | linux_kernel · 6.19.6 → 7.0.11 |
| linux | linux_kernel · 6.6.128 → 6.6.142 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.