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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/a4xx: fix error handling in a4xx_gpu_init()\n\nThis code returns 1 on error instead of a negative error.  It leads to\nan Oops in the caller.  A second problem is that the check for\n\"if (ret != -ENODATA)\" cannot be true because \"ret\" is set to 1."
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              "value": "AV:L - The bug is in drm/msm a4xx_gpu_init() during Adreno component bind, with the dangling GPU then used from local DRM open (msm_open\u2192adreno_load_gpu) or the GPU IRQ handler\u2014local device/ioctl paths only, not network or adjacent protocols.\nAC:L - On A4xx platforms with interconnects naming only gfx-mem (ocmem optional/-ENODATA), the buggy IS_ERR\u2192ret=1 path runs deterministically at probe, frees the GPU, and falsely succeeds bind; a later DRM open or IRQ then uses the freed object with no race or layout outside attacker influence.\nPR:L - After the broken probe leaves a dangling GPU drvdata/IRQ cookie, an unprivileged local user or Android app that can open the MSM DRM/render node triggers adreno_load_gpu() on the freed object without real root or init-namespace admin rights.\nUI:N - The attacker opens the DRM device and drives the load path themselves; no separate victim action such as mounting media or opening a crafted file is required.\nS:U - Impact is a host-kernel UAF/oops within the same kernel authority; it is not a VM escape, IOMMU bypass, or other cross-boundary compromise.\nC:H - The fail path kfree\u0027s the msm_gpu while platform drvdata and the IRQ handler still reference it, a use-after-free that per guidance enables reclaim/spray of the object and arbitrary kernel read primitives.\nI:H - Use of the freed gpu (including irq_handler calling gpu-\u003efuncs-\u003eirq and load/pm paths through dangling function pointers) is a classic UAF control-flow hijack primitive, scored Integrity High under kernel UAF guidance.\nA:H - Dereferencing ERR_PTR(1) as a gpu or using the freed msm_gpu causes a kernel oops/panic, which is full availability impact."
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    "dateReserved": "2024-05-21T14:58:30.832Z",
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