CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: ocfs2: avoid moving extents to occupied clusters For non-auto OCFS2_IOC_MOVE_EXT operations, userspace supplies a physical me_goal. ocfs2_move_extent() initializes new_phys_cpos from that goal and expects ocfs2_probe_alloc_group() to replace it with a free run in the target block group. The probe currently leaves *phys_cpos unchanged if the scan reaches the end of the group without finding a free run. An occupied goal at the last bit can therefore survive the probe and be passed to __ocfs2_move_extent(), which copies file data into a cluster still owned by another inode before the bitmap is updated. When the probe does find a free run, it also subtracts move_len from the ending bit. The start of an N-bit run ending at i is i - N + 1, so the current calculation can report the bit immediately before the free run. Clear *phys_cpos before scanning and use the correct free-run start. Callers already treat a zero result as -ENOSPC, so failed probes no longer continue with an occupied caller-controlled goal.
Засегнати продукти
- Linux Linux: e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди 3112afebf2a76e522fbaabcbb0c47aafbdc35932; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди 35486b291b8fbde6c4d0b1c79e565c6260d3329d; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди 19f7b04924b20b81dabbeed19d5542792ba5b6d6; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди e281d892ce5870a50fdc718cb3bfc3dd5b62c728; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди 0d0c5c17b18bdbc592ac26ab4d1de7e3dbf9be1e; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди d5d5a21fb33cd9b963aea99da81e4dacd452cd95; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди 4d1953d3aeb4a7f6623083e1839068ee1c157db2; e6b5859cccfa0fec02f3c5b1069481efc7186f47 преди 22920541c35a9f23f219038ba5874c843a7c4419
- Linux Linux: 3.0; преди 3.0; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-72164
- https://nvd.nist.gov/vuln/detail/CVE-2026-72164
- https://git.kernel.org/stable/c/3112afebf2a76e522fbaabcbb0c47aafbdc35932
- https://git.kernel.org/stable/c/35486b291b8fbde6c4d0b1c79e565c6260d3329d
- https://git.kernel.org/stable/c/19f7b04924b20b81dabbeed19d5542792ba5b6d6
- https://git.kernel.org/stable/c/e281d892ce5870a50fdc718cb3bfc3dd5b62c728
- https://git.kernel.org/stable/c/0d0c5c17b18bdbc592ac26ab4d1de7e3dbf9be1e
- https://git.kernel.org/stable/c/d5d5a21fb33cd9b963aea99da81e4dacd452cd95
- https://git.kernel.org/stable/c/4d1953d3aeb4a7f6623083e1839068ee1c157db2
- https://git.kernel.org/stable/c/22920541c35a9f23f219038ba5874c843a7c4419