CVE-2022-49927

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> nfs4: Fix kmemleak when allocate slot failed<br /> <br /> If one of the slot allocate failed, should cleanup all the other<br /> allocated slots, otherwise, the allocated slots will leak:<br /> <br /> unreferenced object 0xffff8881115aa100 (size 64):<br /> comm ""mount.nfs"", pid 679, jiffies 4294744957 (age 115.037s)<br /> hex dump (first 32 bytes):<br /> 00 cc 19 73 81 88 ff ff 00 a0 5a 11 81 88 ff ff ...s......Z.....<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> backtrace:<br /> [] nfs4_find_or_create_slot+0x8e/0x130<br /> [] nfs4_realloc_slot_table+0x23f/0x270<br /> [] nfs40_init_client+0x4a/0x90<br /> [] nfs4_init_client+0xce/0x270<br /> [] nfs4_set_client+0x1a2/0x2b0<br /> [] nfs4_create_server+0x300/0x5f0<br /> [] nfs4_try_get_tree+0x65/0x110<br /> [] vfs_get_tree+0x41/0xf0<br /> [] path_mount+0x9b3/0xdd0<br /> [] __x64_sys_mount+0x190/0x1d0<br /> [] do_syscall_64+0x35/0x80<br /> [] entry_SYSCALL_64_after_hwframe+0x46/0xb0