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CVE-2026-72163: 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: ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits [BUG] A direct write over unwritten extents can panic the kernel in ocfs2_assure_trans_credits() when the journal aborts during DIO completion. The crash is a general protection fault from a NULL pointer dereference. [CAUSE] ocfs2_dio_end_io_write() loops over a direct write's unwritten extents, marking each written under a single journal handle. If the journal aborts (for example after an I/O error) while the extent tree is being updated, the handle is left aborted with its transaction pointer cleared. The extent merge treats that failure as not critical and reports success, so the loop keeps using the handle. ocfs2_assure_trans_credits() reads the handle's remaining credits without first checking whether the handle is aborted, and that read dereferences the cleared transaction pointer. [FIX] A journal abort is recorded in the handle itself, so callers are expected to test the handle rather than rely on a returned error. Make ocfs2_assure_trans_credits() do that, as the other ocfs2 journal helpers already do, and return -EROFS when the handle is aborted.

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    • Linux Linux: a68b896aa56e435506453ec8835bc991ec3ae687 преди 2d80e9c56718435a9c9f5f24dbc954989aead579; 320273b5649bbcee87f9e65343077189699d2a7a преди 942b818b396c24c452681803ff291552317d2ef1; 9ea2d1c6789722d58ec191f14f9a02518d55b6b4 преди 7146d191dae3a8efdb957993fb61a55713186266; c05ffb693bfb42a48ef3ee88a55b57392984e111 преди f14aaaa130356ee4adb44de947c098637c70df8f; be346c1a6eeb49d8fda827d2a9522124c2f72f36 преди 6ad7532a23bc94076efe9f1486dd7f7493c090ff; be346c1a6eeb49d8fda827d2a9522124c2f72f36 преди bd73971fad89d5ee4ea0ba9b92d2ea08733c4a64; be346c1a6eeb49d8fda827d2a9522124c2f72f36 преди 253ed993e0b36997ec7b04c1ff76103b38241de2; be346c1a6eeb49d8fda827d2a9522124c2f72f36 преди f9ab30c96b0f00c20c6dac93681bdae3a033d229; 331d1079d58206ff7dc5518185f800b412f89bc6; 5.10.221 преди 5.10.261; 5.15.162 преди 5.15.212; 6.1.97 преди 6.1.178; 6.6.37 преди 6.6.145; 6.9.8 преди 6.10
    • Linux Linux: 6.10; преди 6.10; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

    История

    • 15 август 2026 Публикувано

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    Първоизточници

    CVE-2026-72163: Linux | freedomonline.bg