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CVE-2026-68261: 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: drm/imagination: fix error checking of pvr_vm_context_lookup() Since pvr_vm_context_lookup() returns either NULL or a pointer, then stop using IS_ERR() for checking the return value. Using IS_ERR() leads to the kernel oops reported below. It can be reproduced by passing an invalid VM context handle from userspace to the DRM_IOCTL_PVR_CREATE_CONTEXT ioctl. [ 92.733119] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000148 [ 92.742042] Mem abort info: [ 92.744890] ESR = 0x0000000096000004 [ 92.748686] EC = 0x25: DABT (current EL), IL = 32 bits [ 92.754020] SET = 0, FnV = 0 [ 92.757154] EA = 0, S1PTW = 0 [ 92.760337] FSC = 0x04: level 0 translation fault [ 92.765243] Data abort info: [ 92.768129] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 92.773626] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 92.778763] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 92.784098] user pgtable: 4k pages, 48-bit VAs, pgdp=000000088ed23000 [ 92.790550] [0000000000000148] pgd=0000000000000000, p4d=0000000000000000 [ 92.797381] Internal error: Oops: 0000000096000004 [#1] SMP [ 92.803027] Modules linked in: powervr [ 92.852533] CPU: 0 UID: 0 PID: 409 Comm: triangle Not tainted 7.1.0-rc5-g98b46e693b91 #1 PREEMPT [ 92.861385] Hardware name: Texas Instruments AM68 SK (DT) [ 92.866766] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 92.873709] pc : pvr_vm_get_fw_mem_context+0x0/0xc [powervr] [ 92.879376] lr : pvr_queue_create+0x26c/0x440 [powervr] [ 92.884595] sp : ffff8000837fbb00 [ 92.887895] x29: ffff8000837fbb60 x28: 0000000000000000 x27: ffff8000837fbce8 [ 92.895015] x26: ffff000807f61a40 x25: ffff000807f61a00 x24: ffff000807f64400 [ 92.902135] x23: ffff00080a5ab000 x22: ffff800079b24730 x21: ffff000807f61800 [ 92.909254] x20: ffff00080999e680 x19: 0000000000000000 x18: 0000000000000000 [ 92.916373] x17: 00

    Засегнати продукти

    • Linux Linux: d2d79d29bb98a32c511f7339a8e93b47544fdeac преди ce97192087c659f2e0c0c2a627330c7edcc9eeb3; d2d79d29bb98a32c511f7339a8e93b47544fdeac преди c45fafa69fe3f79e319369cf665da89868e3ef98; d2d79d29bb98a32c511f7339a8e93b47544fdeac преди 401fbe3b6bbb6c94c24ee8843b7beed5111491ac; d2d79d29bb98a32c511f7339a8e93b47544fdeac преди cf385cf6e713eba0720651174dac0b2d2f5bb8f8
    • Linux Linux: 6.8; преди 6.8; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък

    История

    • 10 август 2026 Публикувано

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    Първоизточници

    CVE-2026-68261: Linux | freedomonline.bg