{"id":"CVE-2026-98522","title":"drm/imagination: Propagate map failures correctly from pvr_mmu_map_sgl()","summary":"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() inter…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < 13c7ae1d92ceea18d55612fa9431ca5ac77025f5","Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < afe5b4d66d45b278ecd0e3d6889fb208ce2e5339","Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < d30ea2747164992f5e720f6f53695d422bdc0346","Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < 7b824c293a6b56de8285a97984c507cba56bc4c4","Linux 6.8"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:17:39.774Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98522","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"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.282Z","slug":"CVE-2026-98522","body":"## Overview\n\nIn 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 ]---\n\n## Affected\n\n- `Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < 13c7ae1d92ceea18d55612fa9431ca5ac77025f5`\n- `Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < afe5b4d66d45b278ecd0e3d6889fb208ce2e5339`\n- `Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < d30ea2747164992f5e720f6f53695d422bdc0346`\n- `Linux >= ff5f643de0bf27874c4033cd57a0bd034b5c7d11 < 7b824c293a6b56de8285a97984c507cba56bc4c4`\n- `Linux 6.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}