CVSS
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Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: dm-era: fix shadowed superblock leak on take-snap failure metadata_take_snap() bumps the live superblock refcount and then dm_tm_shadow_block() allocates a new block for the metadata snapshot. If the subsequent dm_sm_inc_block() of writeset_tree_root or era_array_root fails, the function only unlocks the clone and returns. The newly allocated shadow block is never returned to the metadata space map, so each failed take-snap permanently leaks one metadata block. Free the clone with dm_sm_dec_block() on those error paths, matching the final step of metadata_drop_snap().
Засегнати продукти
- Linux Linux: eec40579d84873dfb7021eb24c50360f073237c5 преди 54dd21ca945ecc07885012b9f3e8197f091cfba0; eec40579d84873dfb7021eb24c50360f073237c5 преди ef00efb6fcaee88f50891279ceced17c614e97f7; eec40579d84873dfb7021eb24c50360f073237c5 преди e9fa68b89214bc65af0ef963af7ec3cce9f866e0; eec40579d84873dfb7021eb24c50360f073237c5 преди dc731d7fddfd6149f5e88ea080475d18c36d3c64; eec40579d84873dfb7021eb24c50360f073237c5 преди d66ceeefb87ddb097b0546bafc581380b816b048; eec40579d84873dfb7021eb24c50360f073237c5 преди 36ff918637e3517f732188a3c39dbeae5b9cfb1b; eec40579d84873dfb7021eb24c50360f073237c5 преди 6876ca330e741fb8886d12070cb6a7f9cb67257e; eec40579d84873dfb7021eb24c50360f073237c5 преди 39c5aa3bd8ec3912d2cd0b3fe092642b0d2b0713
- Linux Linux: 3.15; преди 3.15; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 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-2026-89576
- https://nvd.nist.gov/vuln/detail/CVE-2026-89576
- https://git.kernel.org/stable/c/54dd21ca945ecc07885012b9f3e8197f091cfba0
- https://git.kernel.org/stable/c/ef00efb6fcaee88f50891279ceced17c614e97f7
- https://git.kernel.org/stable/c/e9fa68b89214bc65af0ef963af7ec3cce9f866e0
- https://git.kernel.org/stable/c/dc731d7fddfd6149f5e88ea080475d18c36d3c64
- https://git.kernel.org/stable/c/d66ceeefb87ddb097b0546bafc581380b816b048
- https://git.kernel.org/stable/c/36ff918637e3517f732188a3c39dbeae5b9cfb1b
- https://git.kernel.org/stable/c/6876ca330e741fb8886d12070cb6a7f9cb67257e
- https://git.kernel.org/stable/c/39c5aa3bd8ec3912d2cd0b3fe092642b0d2b0713