CVE-2024-42233: linux kernel

csirt@kutim:~/threat-intel/cve/CVE-2024-42233

CVSS 3.3 · Low EPSS 0,19%

Kerentanan pada linux kernel. Skor CVSS 3.1 3.3 (Low) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: filemap: replace pte_offset_map() with pte_offset_map_nolock() The vmf->ptl in filemap_fault_recheck_pte_none() is still set from handle_pte_fault(). But at the same time, we did a pte_unmap(vmf->pte). After a pte_unmap(vmf->pte) unmap and rcu_read_unlock(), the page table may be racily changed and vmf->ptl maybe fails to protect the actual page table. Fix this by replacing pte_offset_map() with pte_offset_map_nolock(). As David said, the PTL pointer might be stale so if we continue to use it infilemap_fault_recheck_pte_none(), it might trigger UAF. Also, if the PTL fails, the issue fixed by commit 58f327f2ce80 ("filemap: avoid unnecessary major faults in filemap_fault()") might reappear.

Rincian

Terbit di NVD: 7 Agustus 2024
Terakhir diubah: 4 Agustus 2026
Status NVD: Modified
CVSS 3.1: 3.3 (Low), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator
EPSS (30 hari): 0,19% peluang dieksploitasi; lebih tinggi dari 8,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
linux	linux kernel	Versi 6.9 hingga sebelum 6.9.10

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.