High severity7.8NVD Advisory· Published Apr 22, 2026· Updated Apr 27, 2026
CVE-2026-31473
CVE-2026-31473
Description
In the Linux kernel, the following vulnerability has been resolved:
media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex
MEDIA_REQUEST_IOC_REINIT can run concurrently with VIDIOC_REQBUFS(0) queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to use-after-free reports.
We already serialize request queueing against STREAMON/OFF with req_queue_mutex. Extend that serialization to REQBUFS, and also take the same mutex in media_request_ioctl_reinit() so REINIT is in the same exclusion domain.
This keeps request cleanup and queue cancellation from running in parallel for request-capable devices.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
53cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.20.1,<5.10.253
- cpe:2.3:o:linux:linux_kernel:4.20:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
- osv-coords44 versionspkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_27&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS
< 6.4.0-150700.53.60.1+ 43 more
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150700.53.60.1.150700.17.35.4
- (no CPE)range: < 6.4.0-150600.23.115.1.150600.12.54.1
- (no CPE)range: < 6.4.0-150600.23.115.1.150600.12.54.1
- (no CPE)range: < 6.4.0-47.1.21.24
- (no CPE)range: < 6.4.0-47.1.21.24
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-47.1
- (no CPE)range: < 6.4.0-47.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-47.1
- (no CPE)range: < 6.4.0-47.1
- (no CPE)range: < 1-150600.13.3.1
- (no CPE)range: < 1-150700.1.5.2
- (no CPE)range: < 1-150700.15.3.2
- (no CPE)range: < 6.4.0-150700.53.60.2
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150700.7.59.2
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-47.1
- (no CPE)range: < 6.4.0-47.1
- (no CPE)range: < 6.4.0-150700.7.59.2
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150600.23.115.1
- (no CPE)range: < 6.4.0-150700.7.59.1
- (no CPE)range: < 6.4.0-150700.53.60.1
- (no CPE)range: < 6.4.0-150600.23.115.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/1a0d9083c24fbd5d22f7100f09d11e4d696a5f01nvdPatch
- git.kernel.org/stable/c/2c685e99efb3b3bd2b78699fba6b1cf321975db0nvdPatch
- git.kernel.org/stable/c/331242998a7ade5c2f65e14988901614629f3db5nvdPatch
- git.kernel.org/stable/c/585fd9a2063dacce8b2820f675ef23d5d17434c5nvdPatch
- git.kernel.org/stable/c/72b9e81e0203f03c40f3adb457f55bd4c8eb112dnvdPatch
- git.kernel.org/stable/c/bef4f4a88b73e4cc550d25f665b8a9952af22773nvdPatch
- git.kernel.org/stable/c/cf2023e84f0888f96f4b65dc0804e7f3651969c1nvdPatch
- git.kernel.org/stable/c/d8549a453d5bdc0a71de66ad47a1106703406a56nvdPatch
News mentions
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