{"id":"DEBIAN-CVE-2026-68261","details":"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: 0000000000000000 x16: 0000000000000000 x15: 0000000000000001 [   92.923492] x14: 0000000000000000 x13: 0000000000000002 x12: ffff80008145b298 [   92.930611] x11: ffff8000844e5000 x10: ffff80008165a130 x9 : 0000000000000100 [   92.937730] x8 : 0000000000000001 x7 : ffff0008076b27e0 x6 : ffff00080ec43b7c [   92.944850] x5 : ffff00080ec43b78 x4 : 0000000000000000 x3 : ffff00080999e680 [   92.951968] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [   92.959088] Call trace: [   92.961521]  pvr_vm_get_fw_mem_context+0x0/0xc [powervr] (P) [   92.967173]  pvr_context_create+0x190/0x410 [powervr] [   92.972218]  pvr_ioctl_create_context+0x44/0x8c [powervr] [   92.977608]  drm_ioctl_kernel+0xbc/0x124 [drm] [   92.982127]  drm_ioctl+0x1f8/0x4dc [drm] [   92.986098]  __arm64_sys_ioctl+0xac/0x104 [   92.990102]  invoke_syscall+0x54/0x10c [   92.993842]  el0_svc_common.constprop.0+0x40/0xe0 [   92.998532]  do_el0_svc+0x1c/0x28 [   93.001835]  el0_svc+0x38/0x11c [   93.004969]  el0t_64_sync_handler+0xa0/0xe4 [   93.009139]  el0t_64_sync+0x198/0x19c [   93.012792] Code: aa1703e0 d2800014 95cb0ba4 17ffffe8 (f940a400) [   93.018869] ---[ end trace 0000000000000000 ]---","modified":"2026-08-27T22:47:47.245563Z","published":"2026-08-10T13:20:14.840Z","upstream":["CVE-2026-68261"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-68261"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.101-1"}]}],"versions":["6.12.100-1","6.12.38-1","6.12.41-1","6.12.43-1","6.12.43-1~bpo12+1","6.12.48-1","6.12.57-1","6.12.57-1~bpo12+1","6.12.63-1","6.12.63-1~bpo12+1","6.12.69-1","6.12.69-1~bpo12+1","6.12.73-1","6.12.73-1~bpo12+1","6.12.74-1","6.12.74-2","6.12.74-2~bpo12+1","6.12.85-1","6.12.85-1~bpo12+1","6.12.86-1","6.12.86-1~bpo12+1","6.12.88-1","6.12.88-1~bpo12+1","6.12.90-1","6.12.90-1~bpo12+1","6.12.90-2","6.12.90-2~bpo12+1","6.12.94-1","6.12.94-1~bpo12+1","6.12.95-1","6.12.95-1~bpo12+1","6.12.96-1"],"ecosystem_specific":{"urgency":"not yet 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