Orta CVSS 5.5

CVE-2024-26773: Linux Kernel: güvenlik açığı

Yayın: 3 Nisan 2024 20:15 · Güncelleme: 6 Kasım 2026 09:47

Açıklama (NVD)

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() Determine if the group block bitmap is corrupted before using ac_b_ex in ext4_mb_try_best_found() to avoid allocating blocks from a group with a corrupted block bitmap in the following concurrency and making the situation worse. ext4_mb_regular_allocator ext4_lock_group(sb, group) ext4_mb_good_group // check if the group bbitmap is corrupted ext4_mb_complex_scan_group // Scan group gets ac_b_ex but doesn't use it ext4_unlock_group(sb, group) ext4_mark_group_bitmap_corrupted(group) // The block bitmap was corrupted during // the group unlock gap. ext4_mb_try_best_found ext4_lock_group(ac->ac_sb, group) ext4_mb_use_best_found mb_mark_used // Allocating blocks in block bitmap corrupted group

Özet bilgiler

Ürün: Linux Linux Kernel
CVSS v3.1: 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: %0,31 (yüzdelik 24)
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
linux-linux-kernel	—	—	4.19.308
linux-linux-kernel	4.20	—	5.4.270
linux-linux-kernel	5.5	—	5.10.211
linux-linux-kernel	5.11	—	5.15.150
linux-linux-kernel	5.16	—	6.1.80
linux-linux-kernel	6.2	—	6.6.19
linux-linux-kernel	6.7	—	6.7.7
linux-linux-kernel	6.8	6.8	—
linux-linux-kernel	6.8	6.8	—
debian-debian-linux	10.0	10.0	—

Kaynaklar

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