Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being accessed after rcu_read_unlock() has been called. This creates a race condition where the memory could be freed by a concurrent writer between the unlock and the subsequent pointer dereferences (opinfo->is_lease, etc.), leading to a use-after-free.
Product status
27b40b7bfcd121fe13a150ffe11957630cf49246 (git) before bf4d66d72e4a9e268c1012c331ce9eaedb5e2086
5fb282ba4fef8985a5acf2b32681f2ec07732561 (git) before 960699317d39f46611f4ebeb69edc567c1f4e6b6
5fb282ba4fef8985a5acf2b32681f2ec07732561 (git) before dbbd328cf58261ca239756fe1c0d10c9518d3399
5fb282ba4fef8985a5acf2b32681f2ec07732561 (git) before b3568347c51c46e2cabc356bc34676df98296619
5fb282ba4fef8985a5acf2b32681f2ec07732561 (git) before eac3361e3d5dd8067b3258c69615888eb45e9f25
6.9
Any version before 6.9
6.6.130 (semver)
6.12.78 (semver)
6.18.19 (semver)
6.19.9 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/bf4d66d72e4a9e268c1012c331ce9eaedb5e2086
git.kernel.org/...c/960699317d39f46611f4ebeb69edc567c1f4e6b6
git.kernel.org/...c/dbbd328cf58261ca239756fe1c0d10c9518d3399
git.kernel.org/...c/b3568347c51c46e2cabc356bc34676df98296619
git.kernel.org/...c/eac3361e3d5dd8067b3258c69615888eb45e9f25