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CVE-2026-45965: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: apparmor: fix invalid deref of rawdata when export_binary is unset If the export_binary parameter is disabled on runtime, profiles that were loaded before that will still have their rawdata stored in apparmorfs, with a symbolic link to the rawdata on the policy directory. When one of those profiles are replaced, the rawdata is set to NULL, but when trying to resolve the symbolic links to rawdata for that profile, it will try to dereference profile->rawdata->name when profile->rawdata is now NULL causing an oops. Fix it by checking if rawdata is set. [ 168.653080] BUG: kernel NULL pointer dereference, address: 0000000000000088 [ 168.657420] #PF: supervisor read access in kernel mode [ 168.660619] #PF: error_code(0x0000) - not-present page [ 168.663613] PGD 0 P4D 0 [ 168.665450] Oops: Oops: 0000 [#1] SMP NOPTI [ 168.667836] CPU: 1 UID: 0 PID: 1729 Comm: ls Not tainted 6.19.0-rc7+ #3 PREEMPT(voluntary) [ 168.672308] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 168.679327] RIP: 0010:rawdata_get_link_base.isra.0+0x23/0x330 [ 168.682768] Code: 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 89 55 d0 48 85 ff 0f 84 e3 01 00 00 <48> 83 3c 25 88 00 00 00 00 0f 84 d4 01 00 00 49 89 f6 49 89 cc e8 [ 168.689818] RSP: 0018:ffffcdcb8200fb80 EFLAGS: 00010282 [ 168.690871] RAX: ffffffffaee74ec0 RBX: 0000000000000000 RCX: ffffffffb0120158 [ 168.692251] RDX: ffffcdcb8200fbe0 RSI: ffff88c187c9fa80 RDI: ffff88c186c98a80 [ 168.693593] RBP: ffffcdcb8200fbc0 R08: 0000000000000000 R09: 0000000000000000 [ 168.694941] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88c186c98a80 [ 168.696289] R13: 00007fff005aaa20 R14: 0000000000000080 R15: ffff88c188f4fce0 [ 168.697637] FS: 0000790e81c58280(0000) GS:ffff88c20a957000(0000) knlGS:0000000000000000 [ 168.699227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050

    Засегнати продукти

    • Linux Linux: 1180b4c757aab5506f1be367000364dd5cf5cd02 преди e6b2fc7e34d4e7ca6b8598c33a3d45d59e455d8d; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди 6d8c180c825cbc73eeffaa79591f8e142dacae70; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди 3c36b87fc2a4cf88eadea8cf13923bd2b4f9a3fa; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди b25298e89a297c42eb4c4d6f081d60375b820abb; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди 19f2e4055626a58842ddec3282ad4465a80c6625; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди 1d2b2b58fde9059a488bc25399e6c3d74e9b5548; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди 1432ab0774cba43e8111be39989ff226531a9bac; 1180b4c757aab5506f1be367000364dd5cf5cd02 преди df9ac55abd18628bd8cff687ea043660532a3654
    • Linux Linux: 4.17; преди 4.17; 5.10.252 до 5.10.*; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.14 до 6.18.*; 6.19.4 до 6.19.*; 7.0 до *

    История

    • 27 май 2026 Публикувано

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    Първоизточници

    CVE-2026-45965: Linux | freedomonline.bg