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CVE-2026-53311: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: fuse: fix uninit-value in fuse_dentry_revalidate() fuse_dentry_revalidate() may be called with a dentry that didn't had ->d_time initialised. The issue was found with KMSAN, where lookup_open() calls __d_alloc(), followed by d_revalidate(), as shown below: ===================================================== BUG: KMSAN: uninit-value in fuse_dentry_revalidate+0x150/0x13d0 fs/fuse/dir.c:394 fuse_dentry_revalidate+0x150/0x13d0 fs/fuse/dir.c:394 d_revalidate fs/namei.c:1030 [inline] lookup_open fs/namei.c:4405 [inline] open_last_lookups fs/namei.c:4583 [inline] path_openat+0x1614/0x64c0 fs/namei.c:4827 do_file_open+0x2aa/0x680 fs/namei.c:4859 [...] Uninit was created at: slab_post_alloc_hook mm/slub.c:4466 [inline] slab_alloc_node mm/slub.c:4788 [inline] kmem_cache_alloc_lru_noprof+0x382/0x1280 mm/slub.c:4807 __d_alloc+0x55/0xa00 fs/dcache.c:1740 d_alloc_parallel+0x99/0x2740 fs/dcache.c:2604 lookup_open fs/namei.c:4398 [inline] open_last_lookups fs/namei.c:4583 [inline] path_openat+0x135f/0x64c0 fs/namei.c:4827 do_file_open+0x2aa/0x680 fs/namei.c:4859 [...] =====================================================

    Засегнати продукти

    • Linux Linux: 2396356a945bb022aff02656f59c2a45d457043f преди da3d241c5b925f17a9d8051d7a9e0d454d8e01f6; 2396356a945bb022aff02656f59c2a45d457043f преди 3ac9117ba3deab8a5dd22847355f861686f4bee7; 2396356a945bb022aff02656f59c2a45d457043f преди 5a6baf204610589f8a5b5a1cd69d1fe661d9d3cd
    • Linux Linux: 6.16; преди 6.16; 6.18.34 до 6.18.*; 7.0.10 до 7.0.*; 7.1 до *

    История

    • 26 юни 2026 Публикувано

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    Първоизточници

    CVE-2026-53311: Linux | freedomonline.bg