CVE-2023-53537

Summary: CVE-2023-53537 concerns a Linux kernel F2FS use-after-free involving a cached IPU bio. Root cause: after cp_error is set, f2fs_submit_merged_ipu_write() failed to validate the bio parameter in f2fs_write_single_data_page(), leading to submission of a random cached bio from another IO con...

CVE-2023-53537: Use After Free

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use-after-free for cached IPU bio xfstest generic/019 reports a bug: kernel BUG at mm/filemap.c:1619! RIP: 0010:folioendwriteback+0x8a/0x90 Call Trace: endpagewriteback+0x1c/0x60 f2fswriteendio+0x199/0x420...