159 lines
13 KiB
JSON
159 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-38189",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-04-16T04:51:23.992Z",
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"datePublished": "2025-07-04T13:37:14.428Z",
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"dateUpdated": "2026-08-05T12:00:14.943Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:00:14.943Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Avoid NULL pointer dereference in `v3d_job_update_stats()`\n\nThe following kernel Oops was recently reported by Mesa CI:\n\n[ 800.139824] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000588\n[ 800.148619] Mem abort info:\n[ 800.151402] ESR = 0x0000000096000005\n[ 800.155141] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 800.160444] SET = 0, FnV = 0\n[ 800.163488] EA = 0, S1PTW = 0\n[ 800.166619] FSC = 0x05: level 1 translation fault\n[ 800.171487] Data abort info:\n[ 800.174357] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000\n[ 800.179832] CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[ 800.184873] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 800.190176] user pgtable: 4k pages, 39-bit VAs, pgdp=00000001014c2000\n[ 800.196607] [0000000000000588] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\n[ 800.205305] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n[ 800.211564] Modules linked in: vc4 snd_soc_hdmi_codec drm_display_helper v3d cec gpu_sched drm_dma_helper drm_shmem_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm i2c_brcmstb snd_timer snd backlight\n[ 800.234448] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.25+rpt-rpi-v8 #1 Debian 1:6.12.25-1+rpt1\n[ 800.244182] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)\n[ 800.250005] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 800.256959] pc : v3d_job_update_stats+0x60/0x130 [v3d]\n[ 800.262112] lr : v3d_job_update_stats+0x48/0x130 [v3d]\n[ 800.267251] sp : ffffffc080003e60\n[ 800.270555] x29: ffffffc080003e60 x28: ffffffd842784980 x27: 0224012000000000\n[ 800.277687] x26: ffffffd84277f630 x25: ffffff81012fd800 x24: 0000000000000020\n[ 800.284818] x23: ffffff8040238b08 x22: 0000000000000570 x21: 0000000000000158\n[ 800.291948] x20: 0000000000000000 x19: ffffff8040238000 x18: 0000000000000000\n[ 800.299078] x17: ffffffa8c1bd2000 x16: ffffffc080000000 x15: 0000000000000000\n[ 800.306208] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n[ 800.313338] x11: 0000000000000040 x10: 0000000000001a40 x9 : ffffffd83b39757c\n[ 800.320468] x8 : ffffffd842786420 x7 : 7fffffffffffffff x6 : 0000000000ef32b0\n[ 800.327598] x5 : 00ffffffffffffff x4 : 0000000000000015 x3 : ffffffd842784980\n[ 800.334728] x2 : 0000000000000004 x1 : 0000000000010002 x0 : 000000ba4c0ca382\n[ 800.341859] Call trace:\n[ 800.344294] v3d_job_update_stats+0x60/0x130 [v3d]\n[ 800.349086] v3d_irq+0x124/0x2e0 [v3d]\n[ 800.352835] __handle_irq_event_percpu+0x58/0x218\n[ 800.357539] handle_irq_event+0x54/0xb8\n[ 800.361369] handle_fasteoi_irq+0xac/0x240\n[ 800.365458] handle_irq_desc+0x48/0x68\n[ 800.369200] generic_handle_domain_irq+0x24/0x38\n[ 800.373810] gic_handle_irq+0x48/0xd8\n[ 800.377464] call_on_irq_stack+0x24/0x58\n[ 800.381379] do_interrupt_handler+0x88/0x98\n[ 800.385554] el1_interrupt+0x34/0x68\n[ 800.389123] el1h_64_irq_handler+0x18/0x28\n[ 800.393211] el1h_64_irq+0x64/0x68\n[ 800.396603] default_idle_call+0x3c/0x168\n[ 800.400606] do_idle+0x1fc/0x230\n[ 800.403827] cpu_startup_entry+0x40/0x50\n[ 800.407742] rest_init+0xe4/0xf0\n[ 800.410962] start_kernel+0x5e8/0x790\n[ 800.414616] __primary_switched+0x80/0x90\n[ 800.418622] Code: 8b170277 8b160296 11000421 b9000861 (b9401ac1)\n[ 800.424707] ---[ end trace 0000000000000000 ]---\n[ 800.457313] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]---\n\nThis issue happens when the file descriptor is closed before the jobs\nsubmitted by it are completed. When the job completes, we update the\nglobal GPU stats and the per-fd GPU stats, which are exposed through\nfdinfo. If the file descriptor was closed, then the struct `v3d_file_priv`\nand its stats were already freed and we can't update the per-fd stats.\n\nTherefore, if the file descriptor was already closed, don't u\n---truncated---"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerability is reached by submitting GPU jobs via V3D_SUBMIT_CL/CSD/TFU/CPU ioctls on the local DRM render node /dev/dri/renderD*, then closing the fd. There is no remote or network-facing path to the v3d job scheduler.\nAC:L - The attacker controls both sides of the race — they choose the GPU job duration (a compute/render job can run for hundreds of ms up to the 500ms sched timeout) and choose when to close(2), and drm_sched_entity_destroy() provably returns without waiting on the hardware fence, so the free-before-IRQ ordering is deterministic. Heap grooming of the freed drm_file slab to control the read-back driver_priv value is likewise under attacker control.\nPR:L - All v3d submit ioctls are DRM_RENDER_ALLOW and render clients bypass the DRM_AUTH check in drm_ioctl(), so any unprivileged local user with render-node access can reach the path with no capabilities. This is the normal state for desktop/app users on Raspberry Pi 4/5 and Broadcom set-top SoCs, for Android-style GPU clients, and for containers/CI where renderD* is 0666 — the follow-up crash report shows UID 1000 running mpv.\nUI:N - The attacking process performs every step itself — submit a long GPU job, then close the file descriptor. No victim action or cooperation is required.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - This is a use-after-free: the freed struct drm_file is read to obtain driver_priv, and the freed v3d_file_priv is read (start_ns, enabled_ns, jobs_completed) during the read-modify-write. Reclaiming those slabs with attacker-chosen objects yields an attacker-steered read primitive at a groomable kernel address, warranting High.\nI:H - v3d_stats_update() writes into freed memory — seqcount increments, a 64-bit accumulate, a counter increment, and an 8-byte zero store — at an address derived from a use-after-free read, i.e. writes at driver_priv+0x158/0x570 where driver_priv is heap-groomable. That is a use-after-free write primitive leverageable for control-flow hijack, so High.\nA:H - The reported trace is a fatal kernel Oops in hardirq context, which escalates unconditionally to \"Kernel panic - not syncing: Oops: Fatal exception in interrupt\". Even without exploitation, the wild pointer dereference reliably panics the machine."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/v3d/v3d_sched.c"
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],
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"versions": [
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{
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"version": "09a93cc4f7d1893777f6b788bffe60d64e4d5df7",
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"lessThan": "c886784000934d5486621106da0614c85bcd76a8",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "09a93cc4f7d1893777f6b788bffe60d64e4d5df7",
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"lessThan": "4f4701489d0f768a232b10d281491184f34bacf0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "09a93cc4f7d1893777f6b788bffe60d64e4d5df7",
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"lessThan": "e1bc3a13bd775791cca0bb144d977b00f3598042",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/v3d/v3d_sched.c"
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],
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"versions": [
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{
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"version": "6.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.8",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.35",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.15.4",
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"lessThanOrEqual": "6.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.16",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.12.35"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.15.4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.16"
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}
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/c886784000934d5486621106da0614c85bcd76a8"
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},
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{
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"url": "https://git.kernel.org/stable/c/4f4701489d0f768a232b10d281491184f34bacf0"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1bc3a13bd775791cca0bb144d977b00f3598042"
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}
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],
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"title": "drm/v3d: Avoid NULL pointer dereference in `v3d_job_update_stats()`",
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"x_generator": {
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"engine": "bippy-1.2.0"
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} |