CVE-2026-68261

0.0

drm/imagination: fix error checking of pvr_vm_context_lookup()

Overview
Vulnerability Timeline

Overview

Description

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 ]---

Details

INFO

Published Date :

Aug. 10, 2026, 1:20 p.m.

Last Modified :

Aug. 17, 2026, 5:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Impact

Affected Products

The following products are affected by CVE-2026-68261 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Linux	linux_kernel

: Total Affected Vendor : 1 | Products : 1

Solution

Update the Linux kernel to a version where the memory corruption vulnerability is fixed.

Apply the latest Linux kernel updates.
Ensure the kernel is updated to a patched version.
Verify the fix by testing the ioctl call.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-68261.

URL	Resource
https://git.kernel.org/stable/c/401fbe3b6bbb6c94c24ee8843b7beed5111491ac
https://git.kernel.org/stable/c/c45fafa69fe3f79e319369cf665da89868e3ef98
https://git.kernel.org/stable/c/ce97192087c659f2e0c0c2a627330c7edcc9eeb3
https://git.kernel.org/stable/c/cf385cf6e713eba0720651174dac0b2d2f5bb8f8

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-68261 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-68261 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-68261 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-68261 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Aug. 17, 2026

Action	Type	Old Value	New Value
Changed	Affected	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'ce97192087c659f2e0c0c2a627330c7edcc9eeb3', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'c45fafa69fe3f79e319369cf665da89868e3ef98', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': '401fbe3b6bbb6c94c24ee8843b7beed5111491ac', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'cf385cf6e713eba0720651174dac0b2d2f5bb8f8', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/imagination/pvr_context.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': ''}], 'programFiles': ['drivers/gpu/drm/imagination/pvr_context.c'], 'defaultStatus': 'affected'}]	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'ce97192087c659f2e0c0c2a627330c7edcc9eeb3', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'c45fafa69fe3f79e319369cf665da89868e3ef98', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': '401fbe3b6bbb6c94c24ee8843b7beed5111491ac', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'cf385cf6e713eba0720651174dac0b2d2f5bb8f8', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/imagination/pvr_context.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': ''}], 'programFiles': ['drivers/gpu/drm/imagination/pvr_context.c'], 'defaultStatus': 'affected'}]

New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Aug. 10, 2026

Action	Type	New Value
Added	Affected	[{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'ce97192087c659f2e0c0c2a627330c7edcc9eeb3', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'c45fafa69fe3f79e319369cf665da89868e3ef98', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': '401fbe3b6bbb6c94c24ee8843b7beed5111491ac', 'versionType': 'git'}, {'status': 'affected', 'version': 'd2d79d29bb98a32c511f7339a8e93b47544fdeac', 'lessThan': 'cf385cf6e713eba0720651174dac0b2d2f5bb8f8', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/imagination/pvr_context.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': ''}], 'programFiles': ['drivers/gpu/drm/imagination/pvr_context.c'], 'defaultStatus': 'affected'}]
Added	Description	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 ]---
Added	Reference	https://git.kernel.org/stable/c/401fbe3b6bbb6c94c24ee8843b7beed5111491ac
Added	Reference	https://git.kernel.org/stable/c/c45fafa69fe3f79e319369cf665da89868e3ef98
Added	Reference	https://git.kernel.org/stable/c/ce97192087c659f2e0c0c2a627330c7edcc9eeb3
Added	Reference	https://git.kernel.org/stable/c/cf385cf6e713eba0720651174dac0b2d2f5bb8f8

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.

Memory Corruption

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