2024-11-07 09:31:28
Linux
PUBLISHED
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: ea is initialized to NULL -> first successful memory allocation for ea -> something failed, goto sea_exit -> first memory release for ea -> goto replay_again -> second goto sea_exit before allocate memory for ea -> second memory release for ea resulted in double free. Re-initialie ea to NULL near to the replay_again label, it can fix this double free problem.