CVE-2024-46688 - "Apache Linux Kernel Null Pointer Dereference"

CVE ID : CVE-2024-46688
Published : Sept. 13, 2024, 6:15 a.m. | 24 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails If z_erofs_gbuf_growsize() partially fails on a global buffer due to memory allocation failure or fault injection (as reported by syzbot [1]), new pages need to be freed by comparing to the existing pages to avoid memory leaks. However, the old gbuf->pages[] array may not be large enough, which can lead to null-ptr-deref or out-of-bound access. Fix this by checking against gbuf->nrpages in advance. [1] https://lore.kernel.org/r/[email protected]
Severity: 0.0 | NA
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