CVE-2026-43163

Katalog CVE

CVSS 4.7 · Medium EPSS 0,09%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada linux kernel. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resize race A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod] This is a use-after-free race between bitmap_daemon_work() and __bitmap_resize(). The daemon iterates over `bitmap->storage.filemap` without locking, while the resize path frees that storage via md_bitmap_file_unmap(). `quiesce()` does not stop the md thread, allowing concurrent access to freed pages. Fix by holding `mddev->bitmap_info.mutex` during the bitmap update.

Rincian

Terbit di NVD

6 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

EPSS (30 hari)

0,09% peluang dieksploitasi; lebih tinggi dari 0,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/140cc839fbeb1ddb33a8da8811b716d88d3905b7 patch
• https://git.kernel.org/stable/c/46ef85f854dfa9d5226b3c1c46493d79556c9589 patch
• https://git.kernel.org/stable/c/5f73c8b33df9a605a591eab72d43a969600c1f8c patch
• https://git.kernel.org/stable/c/9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f patch
• https://git.kernel.org/stable/c/a437e3bf30e32846079e470c1ba5ee790bccdf89 patch
• https://git.kernel.org/stable/c/d3af62411e19752c663fe4f424dbf49d95a4cc7c patch
• https://git.kernel.org/stable/c/d92b8fac294b5f915c50e65ce4ae2262e53614ec patch
• https://git.kernel.org/stable/c/ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 patch