CVE-2026-98522 (GCVE-0-2026-98522)
Vulnerability from cvelistv5
Published
2026-10-18 15:17
Modified
2026-10-19 09:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Propagate map failures correctly from pvr_mmu_map_sgl() Map failure from pvr_mmu_map_sgl() interface was not returned correctly to pvr_mmu_map() interface. This resulted in pvr_mmu_map() interface to continue instead of returning an error to caller. Fix it by returning a proper error code from pvr_mmu_map_sgl() interface. Call stack for crash: [ 1179.286237] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 [ 1179.295067] Mem abort info: [ 1179.297877] ESR = 0x0000000096000004 [ 1179.301656] EC = 0x25: DABT (current EL), IL = 32 bits [ 1179.306987] SET = 0, FnV = 0 [ 1179.310048] EA = 0, S1PTW = 0 [ 1179.313198] FSC = 0x04: level 0 translation fault [ 1179.318096] Data abort info: [ 1179.320993] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 1179.326483] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 1179.331546] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 1179.336895] user pgtable: 4k pages, 48-bit VAs, pgdp=000000009822a000 [ 1179.343402] [0000000000000008] pgd=0000000000000000, p4d=0000000000000000 [ 1179.350243] Internal error: Oops: 0000000096000004 [#2] SMP [ 1179.355908] Modules linked in: powervr gpu_sched drm_shmem_helper drm_gpuvm drm_exec xhci_plat_hcd xhci_hcd dwc3 usbcore usb_common snd_soc_simple_card snd_soc_simple_card_utils dwc3_am62 at24 sa2ul sha512 libsha512 sha256 authenc sch_fq_codel fuse dm_mod ipv6 [ 1179.378992] CPU: 1 UID: 1000 PID: 680 Comm: deqp-vk Tainted: G D 6.17.0 #1 PREEMPT [ 1179.388120] Tainted: [D]=DIE [ 1179.390994] Hardware name: Texas Instruments AM625 SK (DT) [ 1179.396467] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1179.403415] pc : pvr_mmu_op_context_unmap_curr_page+0x6c/0x134 [powervr] [ 1179.410140] lr : pvr_mmu_op_context_unmap_curr_page+0x58/0x134 [powervr] [ 1179.416848] sp : ffff8000839ab8c0 [ 1179.420153] x29: ffff8000839ab8c0 x28: 0000000000000001 x27: 000000008f386000 [ 1179.427283] x26: ffff000016d1df98 x25: 0000000000247000 x24: 00000000000001e6 [ 1179.434413] x23: 0000000000000002 x22: 000000000000ffff x21: 0000000000000247 [ 1179.441540] x20: 0000000000000245 x19: ffff000016d1df60 x18: 0000000000000002 [ 1179.448668] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000001 [ 1179.455793] x14: 0000000000060810 x13: ffff80007fffffff x12: ffff000004190480 [ 1179.462921] x11: ffff8000853f7000 x10: ffff8000811ae000 x9 : ffff0000041900b8 [ 1179.470051] x8 : 0000000000000000 x7 : 00000000990c4001 x6 : 0000000000000007 [ 1179.477177] x5 : ffff000016d1df60 x4 : 0000000000000000 x3 : ffff00000a7d8000 [ 1179.484306] x2 : 00000000000001ff x1 : 0000000000000000 x0 : 0000000000000000 [ 1179.491433] Call trace: [ 1179.493872] pvr_mmu_op_context_unmap_curr_page+0x6c/0x134 [powervr] (P) [ 1179.500582] pvr_mmu_map+0x31c/0x388 [powervr] [ 1179.505027] pvr_vm_gpuva_map+0x40/0x88 [powervr] [ 1179.509732] __drm_gpuvm_sm_map+0x250/0x44c [drm_gpuvm] [ 1179.514952] drm_gpuvm_sm_map+0x48/0x5c [drm_gpuvm] [ 1179.519822] pvr_vm_bind_op_exec+0x64/0x70 [powervr] [ 1179.524785] pvr_vm_map+0x1f8/0x2a8 [powervr] [ 1179.529142] pvr_ioctl_vm_map+0x12c/0x188 [powervr] [ 1179.534018] drm_ioctl_kernel+0xb8/0x128 [ 1179.537941] drm_ioctl+0x21c/0x4ec [ 1179.541337] __arm64_sys_ioctl+0xac/0x108 [ 1179.545344] invoke_syscall+0x44/0x100 [ 1179.549091] el0_svc_common.constprop.0+0x40/0xe0 [ 1179.553790] do_el0_svc+0x1c/0x28 [ 1179.557106] el0_svc+0x34/0xf0 [ 1179.560159] el0t_64_sync_handler+0xd0/0xe4 [ 1179.564334] el0t_64_sync+0x198/0x19c [ 1179.567996] Code: 54000300 35000360 f9402261 79409a62 (f9400421) [ 1179.574081] ---[ end trace 0000000000000000 ]---
References
Impacted products
Vendor Product Version
Linux Linux Version: ff5f643de0bf27874c4033cd57a0bd034b5c7d11
Version: ff5f643de0bf27874c4033cd57a0bd034b5c7d11
Version: ff5f643de0bf27874c4033cd57a0bd034b5c7d11
Version: ff5f643de0bf27874c4033cd57a0bd034b5c7d11
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/imagination/pvr_mmu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "13c7ae1d92ceea18d55612fa9431ca5ac77025f5",
              "status": "affected",
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "versionType": "git"
            },
            {
              "lessThan": "afe5b4d66d45b278ecd0e3d6889fb208ce2e5339",
              "status": "affected",
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "versionType": "git"
            },
            {
              "lessThan": "d30ea2747164992f5e720f6f53695d422bdc0346",
              "status": "affected",
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "versionType": "git"
            },
            {
              "lessThan": "7b824c293a6b56de8285a97984c507cba56bc4c4",
              "status": "affected",
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/imagination/pvr_mmu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.55",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.9",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: Propagate map failures correctly from pvr_mmu_map_sgl()\n\nMap failure from pvr_mmu_map_sgl() interface was not returned correctly\nto pvr_mmu_map() interface. This resulted in pvr_mmu_map() interface to\ncontinue instead of returning an error to caller.\nFix it by returning a proper error code from pvr_mmu_map_sgl() interface.\n\nCall stack for crash:\n[ 1179.286237] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n[ 1179.295067] Mem abort info:\n[ 1179.297877]   ESR = 0x0000000096000004\n[ 1179.301656]   EC = 0x25: DABT (current EL), IL = 32 bits\n[ 1179.306987]   SET = 0, FnV = 0\n[ 1179.310048]   EA = 0, S1PTW = 0\n[ 1179.313198]   FSC = 0x04: level 0 translation fault\n[ 1179.318096] Data abort info:\n[ 1179.320993]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[ 1179.326483]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[ 1179.331546]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 1179.336895] user pgtable: 4k pages, 48-bit VAs, pgdp=000000009822a000\n[ 1179.343402] [0000000000000008] pgd=0000000000000000, p4d=0000000000000000\n[ 1179.350243] Internal error: Oops: 0000000096000004 [#2]  SMP\n[ 1179.355908] Modules linked in: powervr gpu_sched drm_shmem_helper drm_gpuvm drm_exec xhci_plat_hcd xhci_hcd dwc3 usbcore usb_common snd_soc_simple_card snd_soc_simple_card_utils dwc3_am62 at24 sa2ul sha512 libsha512 sha256 authenc sch_fq_codel fuse dm_mod ipv6\n[ 1179.378992] CPU: 1 UID: 1000 PID: 680 Comm: deqp-vk Tainted: G      D             6.17.0 #1 PREEMPT\n[ 1179.388120] Tainted: [D]=DIE\n[ 1179.390994] Hardware name: Texas Instruments AM625 SK (DT)\n[ 1179.396467] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 1179.403415] pc : pvr_mmu_op_context_unmap_curr_page+0x6c/0x134 [powervr]\n[ 1179.410140] lr : pvr_mmu_op_context_unmap_curr_page+0x58/0x134 [powervr]\n[ 1179.416848] sp : ffff8000839ab8c0\n[ 1179.420153] x29: ffff8000839ab8c0 x28: 0000000000000001 x27: 000000008f386000\n[ 1179.427283] x26: ffff000016d1df98 x25: 0000000000247000 x24: 00000000000001e6\n[ 1179.434413] x23: 0000000000000002 x22: 000000000000ffff x21: 0000000000000247\n[ 1179.441540] x20: 0000000000000245 x19: ffff000016d1df60 x18: 0000000000000002\n[ 1179.448668] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000001\n[ 1179.455793] x14: 0000000000060810 x13: ffff80007fffffff x12: ffff000004190480\n[ 1179.462921] x11: ffff8000853f7000 x10: ffff8000811ae000 x9 : ffff0000041900b8\n[ 1179.470051] x8 : 0000000000000000 x7 : 00000000990c4001 x6 : 0000000000000007\n[ 1179.477177] x5 : ffff000016d1df60 x4 : 0000000000000000 x3 : ffff00000a7d8000\n[ 1179.484306] x2 : 00000000000001ff x1 : 0000000000000000 x0 : 0000000000000000\n[ 1179.491433] Call trace:\n[ 1179.493872]  pvr_mmu_op_context_unmap_curr_page+0x6c/0x134 [powervr] (P)\n[ 1179.500582]  pvr_mmu_map+0x31c/0x388 [powervr]\n[ 1179.505027]  pvr_vm_gpuva_map+0x40/0x88 [powervr]\n[ 1179.509732]  __drm_gpuvm_sm_map+0x250/0x44c [drm_gpuvm]\n[ 1179.514952]  drm_gpuvm_sm_map+0x48/0x5c [drm_gpuvm]\n[ 1179.519822]  pvr_vm_bind_op_exec+0x64/0x70 [powervr]\n[ 1179.524785]  pvr_vm_map+0x1f8/0x2a8 [powervr]\n[ 1179.529142]  pvr_ioctl_vm_map+0x12c/0x188 [powervr]\n[ 1179.534018]  drm_ioctl_kernel+0xb8/0x128\n[ 1179.537941]  drm_ioctl+0x21c/0x4ec\n[ 1179.541337]  __arm64_sys_ioctl+0xac/0x108\n[ 1179.545344]  invoke_syscall+0x44/0x100\n[ 1179.549091]  el0_svc_common.constprop.0+0x40/0xe0\n[ 1179.553790]  do_el0_svc+0x1c/0x28\n[ 1179.557106]  el0_svc+0x34/0xf0\n[ 1179.560159]  el0t_64_sync_handler+0xd0/0xe4\n[ 1179.564334]  el0t_64_sync+0x198/0x19c\n[ 1179.567996] Code: 54000300 35000360 f9402261 79409a62 (f9400421)\n[ 1179.574081] ---[ end trace 0000000000000000 ]---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:21:04.111Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/13c7ae1d92ceea18d55612fa9431ca5ac77025f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/afe5b4d66d45b278ecd0e3d6889fb208ce2e5339"
        },
        {
          "url": "https://git.kernel.org/stable/c/d30ea2747164992f5e720f6f53695d422bdc0346"
        },
        {
          "url": "https://git.kernel.org/stable/c/7b824c293a6b56de8285a97984c507cba56bc4c4"
        }
      ],
      "title": "drm/imagination: Propagate map failures correctly from pvr_mmu_map_sgl()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98522",
    "datePublished": "2026-10-18T15:17:39.774Z",
    "dateReserved": "2026-09-25T10:25:14.355Z",
    "dateUpdated": "2026-10-19T09:21:04.111Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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