In the Linux kernel, the following vulnerabilities have been resolved: **ubifs**: A memory leak was fixed in `alloc_wbufs()`. **kmemleak** reported a series of memory leaks. The details are as follows: - **Unreferenced object 0xffff8881575f8400 (size 1024):** Command: “mount”, PID: 19625, Jiffies: 4297119604 (Age: 20.383 seconds) Hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Backtrace: [] __kmalloc+0x4d/0x150 [] ubifs_mount+0x307b/0x7170 [ubifs] [] legacy_get_tree+0xed/0x1d0 [] vfs_get_tree+0x7d/0x230 [] path_mount+0xdd4/0x17b0 [] __x64_sys_mount+0x1fa/0x270 [] do_syscall_64+0x35/0x80 [] entry_SYSCALL_64_after_hwframe+0x46/0xb0 - **Unreferenced object 0xffff8881798a6e00 (size 512):** Command: “mount”, PID: 19677, Jiffies: 4297121912 (Age: 37.816 seconds) Hex dump (first 32 bytes): 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Backtrace: [] __kmalloc+0x4d/0x150 [] ubifs_wbuf_init+0x52/0x480 [ubifs] [] ubifs_mount+0x31f5/0x7170 [ubifs] [] legacy_get_tree+0xed/0x1d0 [] vfs_get_tree+0x7d/0x230 [] path_mount+0xdd4/0x17b0 [] __x64_sys_mount+0x1fa/0x270 [] do_syscall_64+0x35/0x80 [] entry_SYSCALL_64_after_hwframe+0x46/0xb0 The issue arises from the fact that `ubifs_wbuf_init()` returns an error during the loop. As a result, the memory allocated before by `wbuf->buf` and `wbuf->inodes` is not freed. This issue can be fixed by adding an error handling mechanism in `alloc_wbufs()`, which will free the previously allocated memory when `ubifs_wbuf_init()` returns an error.

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