CVE-2024-26840

linux kernel

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2024-26840

Katalog CVE

CVSS 5.5 · Medium EPSS 0,28%

Kerentanan Missing Release of Memory after Effective Lifetime pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: cachefiles: fix memory leak in cachefiles_add_cache() The following memory leak was reported after unbinding /dev/cachefiles: ================================================================== unreferenced object 0xffff9b674176e3c0 (size 192): comm "cachefilesd2", pid 680, jiffies 4294881224 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc ea38a44b): [<ffffffff8eb8a1a5>] kmem_cache_alloc+0x2d5/0x370 [<ffffffff8e917f86>] prepare_creds+0x26/0x2e0 [<ffffffffc002eeef>] cachefiles_determine_cache_security+0x1f/0x120 [<ffffffffc00243ec>] cachefiles_add_cache+0x13c/0x3a0 [<ffffffffc0025216>] cachefiles_daemon_write+0x146/0x1c0 [<ffffffff8ebc4a3b>] vfs_write+0xcb/0x520 [<ffffffff8ebc5069>] ksys_write+0x69/0xf0 [<ffffffff8f6d4662>] do_syscall_64+0x72/0x140 [<ffffffff8f8000aa>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 ================================================================== Put the reference count of cache_cred in cachefiles_daemon_unbind() to fix the problem. And also put cache_cred in cachefiles_add_cache() error branch to avoid memory leaks.

Rincian

Terbit di NVD
17 April 2024
Terakhir diubah
17 Juni 2026
Status NVD
Analyzed
CVSS 3.1
5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-401: Missing Release of Memory after Effective Lifetime
EPSS (30 hari)
0,28% peluang dieksploitasi; lebih tinggi dari 18,8% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
linux linux kernel Versi 2.6.30 hingga sebelum 4.19.309
linux linux kernel Versi 4.20 hingga sebelum 5.4.271
linux linux kernel Versi 5.5 hingga sebelum 5.10.212
linux linux kernel Versi 5.11 hingga sebelum 5.15.151
linux linux kernel Versi 5.16 hingga sebelum 6.1.80
linux linux kernel Versi 6.2 hingga sebelum 6.6.19
linux linux kernel Versi 6.7 hingga sebelum 6.7.7
linux linux kernel Versi 6.8 rc1
linux linux kernel Versi 6.8 rc2
linux linux kernel Versi 6.8 rc3
linux linux kernel Versi 6.8 rc4
linux linux kernel Versi 6.8 rc5

> 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.