{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53380","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.401Z","datePublished":"2026-07-19T10:02:02.030Z","dateUpdated":"2026-08-05T12:35:20.740Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:35:20.740Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: rzv2h-ivc: Fix concurrent buffer list access\n\nThe list of buffers (`rzv2h_ivc::buffers.queue`) is protected by a\nspinlock (`rzv2h_ivc::buffers.lock`). However, in\n`rzv2h_ivc_transfer_buffer()`, which runs in a separate workqueue, the\n`list_del()` call is executed without holding the spinlock, which makes\nit possible for the list to be concurrently modified\n\nFix that by removing a buffer from the list in the lock protected section.\n\n[assign ivc->buffers.curr in critical section as reported by Barnabas]"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The flaw is reached only through local V4L2 syscalls (open/ioctl/mmap) on the /dev/video* node registered by this platform driver; it is not triggered by remote network packets or physical bus insertion.\nAC:L - An attacker controls both sides of the race by issuing concurrent VIDIOC_QBUF and VIDIOC_STREAMOFF/STREAMON calls from multiple threads while streaming, reliably interleaving with the workqueue handler that performs the unlocked list_del().\nPR:L - Exploitation requires only a local account with access to the V4L2 video device node (typically membership in the video group or a dedicated vision-service account on RZ/V2H embedded deployments), not real root in the init namespace.\nUI:N - The attacker directly drives all required V4L2 ioctl operations to queue buffers and start/stop streaming; no independent victim action is needed.\nS:U - Successful exploitation corrupts kernel memory from a local userspace context to achieve kernel-level impact (crash, info leak, or privilege escalation), which remains within the same kernel security authority rather than crossing a VM or hypervisor boundary.\nC:H - Unsynchronized list_del()/list manipulation on the buffer queue can corrupt kernel linked-list pointers and create use-after-free conditions when buffers are concurrently completed or returned, enabling arbitrary kernel memory reads.\nI:H - Corrupted list_head structures and concurrent assignment of ivc->buffers.curr outside the spinlock can yield exploitable heap corruption and arbitrary write primitives beyond a simple denial-of-service crash.\nA:H - The race can cause kernel list corruption, use-after-free, and BUG/list debugging failures that result in kernel oops/panic when streaming buffers on affected RZ/V2H systems."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc-video.c"],"versions":[{"version":"f0b3984d821b3a603cd8786dca6cc73d47c4521a","lessThan":"c746522bd3264132ab2e2382e96e19cdb8a6c1ba","status":"affected","versionType":"git"},{"version":"f0b3984d821b3a603cd8786dca6cc73d47c4521a","lessThan":"72773ff1cdfaebc593f53b1719b2c1773ecf8c43","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc-video.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"7.0.9","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c746522bd3264132ab2e2382e96e19cdb8a6c1ba"},{"url":"https://git.kernel.org/stable/c/72773ff1cdfaebc593f53b1719b2c1773ecf8c43"}],"title":"media: rzv2h-ivc: Fix concurrent buffer list access","x_generator":{"engine":"bippy-1.2.0"}}}}