CVE-2023-54317

Katalog CVE

CVSS 7.8 · High EPSS 0,16%

Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: dm flakey: don't corrupt the zero page When we need to zero some range on a block device, the function __blkdev_issue_zero_pages submits a write bio with the bio vector pointing to the zero page. If we use dm-flakey with corrupt bio writes option, it will corrupt the content of the zero page which results in crashes of various userspace programs. Glibc assumes that memory returned by mmap is zeroed and it uses it for calloc implementation; if the newly mapped memory is not zeroed, calloc will return non-zeroed memory. Fix this bug by testing if the page is equal to ZERO_PAGE(0) and avoiding the corruption in this case.

Rincian

Terbit di NVD

30 Desember 2025

Terakhir diubah

4 Agustus 2026

Status NVD

Deferred

CVSS 3.1

7.8 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/3c4a56ef7c538d16c1738ba0ccea9e7146105b5a
• https://git.kernel.org/stable/c/63d31617883d64b43b0e2d529f0751f40713ecae
• https://git.kernel.org/stable/c/98e311be44dbe31ad9c42aa067b2359bac451fda
• https://git.kernel.org/stable/c/b7f8892f672222dbfcc721f51edc03963212b249
• https://git.kernel.org/stable/c/be360c83f2d810493c04f999d69ec9152981e0c0
• https://git.kernel.org/stable/c/f2b478228bfdd11e358c5bc197561331f5d5c394
• https://git.kernel.org/stable/c/f50714b57aecb6b3dc81d578e295f86d9c73f078
• https://git.kernel.org/stable/c/ff60b2bb680ebcaf8890814dd51084a022891469