Към съдържанието
Търсене

CVE-2026-89543: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix use-after-free in __rpc_clnt_handle_event and __rpc_clnt_remove_pipedir Normal client creation goes through rpc_setup_pipedir(), which records clnt->pipefs_sb, but the mount-event path in __rpc_clnt_handle_event() calls rpc_setup_pipedir_sb() directly and never refreshes that field. The umount path also removes the directory without clearing clnt->pipefs_sb. After a late pipefs mount or any remount, rpc_clnt_remove_pipedir() compares the current superblock against a stale pipefs_sb pointer and skips cleanup, leaving pipefs dentries whose inode private data still points at a freed rpc_clnt, leading to a potential use-after-free during subsequent rpc_info_open() or rpc_show_info() calls. Fix this by properly updating clnt->pipefs_sb upon mount events and clearing it during unmount or failure paths.

    Засегнати продукти

    • Linux Linux: 7749fd2dbef72a52b5c9ffdbf877691950ed4680 преди 1a713814e0580f946196bca5e340b37991c6e8bf; cc2e7ebbeb1d0601f7f3c8d93b78fcc03a95e44a преди f99fedfd1dbffe8d20b421c9a7d4655a135d4fcd; bfca5fb4e97c46503ddfc582335917b0cc228264 преди 59527bbfb1eabdb28e95e7c725886cc2c2899cb3; bfca5fb4e97c46503ddfc582335917b0cc228264 преди e769fcde3cc73e847b1eb3acd40c04a291cb0c0c; bfca5fb4e97c46503ddfc582335917b0cc228264 преди cdf7a233cb94774b0e7df42d9157077983f5022c; bfca5fb4e97c46503ddfc582335917b0cc228264 преди 932a8cf6abb2b2f8677b79153a823108d8861fe2; 17866066b8ac1cc38fb449670bc15dc9fee4b40a; 7d61d1da2ed1f682c41cae0c8d4719cdaccee5c5; dedf2a0eb9448ae73b270743e6ea9b108189df46; 194454afa6aa9d6ed74f0c57127bc8beb27c20df; 1cdb52ffd6600a37bd355d8dce58ecd03e55e618; 6.1.64 преди 6.1.191; 6.6.3 преди 6.6.160; 4.19.318 преди 4.20; 5.4.280 преди 5.5; 5.10.202 преди 5.11; 5.15.140 преди 5.16; 6.5.13 преди 6.6
    • Linux Linux: 6.7; преди 6.7; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.111 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

    CVE-2026-89543: Linux | freedomonline.bg