CVE-2022-21546

Katalog CVE

CVSS 7.8 · High EPSS 0,45%

Kerentanan NULL Pointer Dereference pada linux kernel, debian linux. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.

Rincian

Terbit di NVD

2 Mei 2025

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,45% peluang dieksploitasi; lebih tinggi dari 36,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510 patch
• https://git.kernel.org/stable/c/54e57be2573cf0b8bf650375fd8752987b6c3d3b patch
• https://git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29 patch
• https://git.kernel.org/stable/c/d8e6a27e9238dd294d6f2f401655f300dca20899 patch
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html mailing list