Threats Tagged 'cve-2026-89695'
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Threats Tagged 'cve-2026-89695'
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A vulnerability in the Linux kernel's NFS server (nfsd) was resolved that involved unbounded CPU usage due to an uncapped POSIX ACL entry count. The function nfsd4_decode_posixacl() reads an unchecked 32-bit count from the network and passes it to posix_acl_alloc() and an O(n^2) bubble sort, allowing a client to cause excessive CPU consumption. The fix adds a check to reject counts exceeding NFS_ACL_MAX_ENTRIES before allocation and sorting, bounding the CPU cost. Additionally, the error code returned on memory allocation failure was corrected. Join the discussion | GCVE Database | 09/11/2026, 21:31:37 UTC Added: 09/12/2026, 00:42:36 UTC |
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