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CVE-2026-80863: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Атакува се

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix OOB in free_rd_atomic_resources() free_rd_atomic_resources() iterates using qp->attr.max_dest_rd_atomic. Updating max_dest_rd_atomic before freeing the old array can make the free path walk past the old allocation and trigger a slab out-of-bounds write catched by KASAN: ================================================================== BUG: KASAN: slab-out-of-bounds in free_rd_atomic_resource drivers/infiniband/sw/rxe/rxe_qp.c:180 [inline] BUG: KASAN: slab-out-of-bounds in free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:171 [inline] BUG: KASAN: slab-out-of-bounds in free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:163 [inline] BUG: KASAN: slab-out-of-bounds in rxe_qp_from_attr+0x1e88/0x2150 drivers/infiniband/sw/rxe/rxe_qp.c:712 Write of size 4 at addr ffff88802b8dddb8 by task syz.3.451/11063 CPU: 0 UID: 0 PID: 11063 Comm: syz.3.451 Not tainted 7.1.0 #2 PREEMPT(full) Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x10e/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xf7/0x600 mm/kasan/report.c:482 kasan_report+0xe4/0x120 mm/kasan/report.c:595 free_rd_atomic_resource drivers/infiniband/sw/rxe/rxe_qp.c:180 [inline] free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:171 [inline] free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:163 [inline] rxe_qp_from_attr+0x1e88/0x2150 drivers/infiniband/sw/rxe/rxe_qp.c:712 rxe_modify_qp+0x1e2/0x530 drivers/infiniband/sw/rxe/rxe_verbs.c:623 ib_security_modify_qp+0x223/0xfa0 drivers/infiniband/core/security.c:625 _ib_modify_qp+0x333/0xec0 drivers/infiniband/core/verbs.c:1915 modify_qp+0x13ca/0x1940 drivers/infiniband/core/uverbs_cmd.c:1932 ib_uverbs_modify_qp+0xcb/0x120 drivers/infiniband/core/uverbs_cmd

    Засегнати продукти

    • Linux Linux: b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди 142c8165b7974b40fa62c393653edb5c00b8b5fe; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди 30b90b55201902b2b8edcdbe2315ccd4c7547002; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди 9b7d66ea88ae9395e42766b94a5c717b158b940a; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди f5e6580a3a16a83c743ad5a7c16922854a0d8b71; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди bc6e943794515d2a8417b02597a27bd377468d04; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди bdf5deccfbf9f556a08d1d2ef52e9e48f969e53e; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди 4e5f753e8c280278c09f68fe728abf846e2bdfc1; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди d219e7a8eed3802970c3e4d243d79c70ef0a31bf; b6bbee0d2438a2c9c7525f5bd7047a8b2ce4f38f преди de329533792a373186d79dca1ca120f8fa0afd05
    • Linux Linux: 4.9; преди 4.9; 5.10.269 до 5.10.*; 5.15.220 до 5.15.*; 6.1.187 до 6.1.*; 6.6.156 до 6.6.*; 6.12.108 до 6.12.*; 6.18.49 до 6.18.*; 7.1.13 до 7.1.*; 7.2.3 до 7.2.*; от 7.3 нататък

    История

    • 4 септември 2026 Публикувано

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    Първоизточници

    CVE-2026-80863: Linux | freedomonline.bg