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CVSS
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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
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Атакува се
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Време до експлоатация
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: cifs: call pagecache_isize_extended() in cifs_setsize() when extending cifs_setsize() calls truncate_pagecache() but skips pagecache_isize_extended() on extension. truncate_setsize() shows the correct pattern: i_size_write(inode, newsize); if (newsize > oldsize) pagecache_isize_extended(inode, oldsize, newsize); truncate_pagecache(inode, newsize); pagecache_isize_extended() zeroes the tail of the page straddling old EOF. Without it, dirty bytes in that region can be written back to the server, exposing stale data in the newly extended range.
Засегнати продукти
- Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 880e1b5883a5d78d916fa446791c48f28a16719b; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 5463d96cd2e46064ceefcf861b028745a4f4c373; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 40c16040783abcc240bd1b453e679ea6ca30e19e; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди e1f692b6da3e632a25d0b3a99f833bb609bae1a3; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 12bafe32f09c0d24f5096154b59c347b9c6606e0; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди c510edb9734af1c274d18f4f31a471a166bbc7e8
- Linux Linux: 2.6.12; преди 2.6.12; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък
История
- 11 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-89642
- https://nvd.nist.gov/vuln/detail/CVE-2026-89642
- https://git.kernel.org/stable/c/880e1b5883a5d78d916fa446791c48f28a16719b
- https://git.kernel.org/stable/c/5463d96cd2e46064ceefcf861b028745a4f4c373
- https://git.kernel.org/stable/c/40c16040783abcc240bd1b453e679ea6ca30e19e
- https://git.kernel.org/stable/c/e1f692b6da3e632a25d0b3a99f833bb609bae1a3
- https://git.kernel.org/stable/c/12bafe32f09c0d24f5096154b59c347b9c6606e0
- https://git.kernel.org/stable/c/c510edb9734af1c274d18f4f31a471a166bbc7e8