Description
In the Linux kernel, the following vulnerability has been resolved: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match(). smc_clc_prfx_match() is called from smc_listen_work() and not under RCU nor RTNL. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the returned value of smc_clc_prfx_match() is not used in the caller.
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
a046d57da19f812216f393e7c535f5858f793ac3 to < 3f119c37aa293af41400cccb3d89fab8dcf774b0affecteda046d57da19f812216f393e7c535f5858f793ac3 to < 4f5f52a5842937f945582a93cb9daed9ea526feeaffecteda046d57da19f812216f393e7c535f5858f793ac3 to < 326e5cf301d0bec0a672aa834d8254c4f9df6255affecteda046d57da19f812216f393e7c535f5858f793ac3 to < d26e80f7fb62d77757b67a1b94e4ac756bc9c658affecteda046d57da19f812216f393e7c535f5858f793ac3 to < 235f81045c008169cc4e1955b4a64e118eebe61baffected
Linux Linux
Default version status: affected
4.11affected0 to < 4.11unaffected6.1.187 to ≤ 6.1.*unaffected6.6.156 to ≤ 6.6.*unaffected6.12.108 to ≤ 6.12.*unaffected6.17.3 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3f119c37aa293af41400cccb3d89fab8dcf774b0 ↗
- https://git.kernel.org/stable/c/4f5f52a5842937f945582a93cb9daed9ea526fee ↗
- https://git.kernel.org/stable/c/326e5cf301d0bec0a672aa834d8254c4f9df6255 ↗
- https://git.kernel.org/stable/c/d26e80f7fb62d77757b67a1b94e4ac756bc9c658 ↗
- https://git.kernel.org/stable/c/235f81045c008169cc4e1955b4a64e118eebe61b ↗