{"api_version":"1","generated_at":"2026-10-02T02:20:53+00:00","cve":"CVE-2026-89879","urls":{"html":"https://cve.report/CVE-2026-89879","api":"https://cve.report/api/cve/CVE-2026-89879.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89879","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89879"},"summary":{"title":"media: s2255: bound JPEG frame size before copying into the buffer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: bound JPEG frame size before copying into the buffer\n\ns2255_fillbuff() memcpy()s vc->jpg_size bytes of a captured JPEG/MJPEG\nframe into the vb2 plane.  vc->jpg_size is taken verbatim from the\nS2255_MARKER_FRAME header the device sends (pdword[4] in save_frame())\nand, unlike the frame payload length just above it, is never bounded:\n\n\tpayload = le32_to_cpu(pdword[3]);\n\tif (payload > vc->req_image_size)\t/* payload is checked ... */\n\t\treturn -EINVAL;\n\tvc->pkt_size = payload;\n\tvc->jpg_size = le32_to_cpu(pdword[4]);\t/* ... jpg_size is not */\n\nA malicious or malfunctioning device can therefore report a jpg_size\nlarger than the destination vb2 plane, and the memcpy() writes past it.\njpg_size is a signed int, so a value with the top bit set also turns\ninto a huge length.\n\nReject a frame whose jpg_size is negative or exceeds the plane size\nbefore copying it.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:16:56","updated_at":"2026-09-16 11:16:56"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2542516a147bfad740e7e411c251b639fad260ff","name":"https://git.kernel.org/stable/c/2542516a147bfad740e7e411c251b639fad260ff","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e504cc888f42999dd76b6a43788c422610f2aad2","name":"https://git.kernel.org/stable/c/e504cc888f42999dd76b6a43788c422610f2aad2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd739517560c8d0ec4463a53e717bf40b988d7da","name":"https://git.kernel.org/stable/c/dd739517560c8d0ec4463a53e717bf40b988d7da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/32a595dd3e8634544e5cfbc47f906dff3d3c1ef8","name":"https://git.kernel.org/stable/c/32a595dd3e8634544e5cfbc47f906dff3d3c1ef8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d2ecaaab6a4f165abb54cdf61be60030b5782bf8","name":"https://git.kernel.org/stable/c/d2ecaaab6a4f165abb54cdf61be60030b5782bf8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77","name":"https://git.kernel.org/stable/c/79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/68d664f1b4efe525e99154b7058fcb0378bdaff7","name":"https://git.kernel.org/stable/c/68d664f1b4efe525e99154b7058fcb0378bdaff7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4b6f7bccc6559ae5c54573c284fe76eafc9989b2","name":"https://git.kernel.org/stable/c/4b6f7bccc6559ae5c54573c284fe76eafc9989b2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89879","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89879","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7 32a595dd3e8634544e5cfbc47f906dff3d3c1ef8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7 4b6f7bccc6559ae5c54573c284fe76eafc9989b2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7 2542516a147bfad740e7e411c251b639fad260ff git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7 79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/usb/s2255/s2255drv.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"32a595dd3e8634544e5cfbc47f906dff3d3c1ef8","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"4b6f7bccc6559ae5c54573c284fe76eafc9989b2","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"2542516a147bfad740e7e411c251b639fad260ff","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"d2ecaaab6a4f165abb54cdf61be60030b5782bf8","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"68d664f1b4efe525e99154b7058fcb0378bdaff7","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"dd739517560c8d0ec4463a53e717bf40b988d7da","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"},{"lessThan":"e504cc888f42999dd76b6a43788c422610f2aad2","status":"affected","version":"38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/usb/s2255/s2255drv.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.27"},{"lessThan":"2.6.27","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"2.6.27","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"2.6.27","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: bound JPEG frame size before copying into the buffer\n\ns2255_fillbuff() memcpy()s vc->jpg_size bytes of a captured JPEG/MJPEG\nframe into the vb2 plane.  vc->jpg_size is taken verbatim from the\nS2255_MARKER_FRAME header the device sends (pdword[4] in save_frame())\nand, unlike the frame payload length just above it, is never bounded:\n\n\tpayload = le32_to_cpu(pdword[3]);\n\tif (payload > vc->req_image_size)\t/* payload is checked ... */\n\t\treturn -EINVAL;\n\tvc->pkt_size = payload;\n\tvc->jpg_size = le32_to_cpu(pdword[4]);\t/* ... jpg_size is not */\n\nA malicious or malfunctioning device can therefore report a jpg_size\nlarger than the destination vb2 plane, and the memcpy() writes past it.\njpg_size is a signed int, so a value with the top bit set also turns\ninto a huge length.\n\nReject a frame whose jpg_size is negative or exceeds the plane size\nbefore copying it."}],"providerMetadata":{"dateUpdated":"2026-09-16T10:31:45.564Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/32a595dd3e8634544e5cfbc47f906dff3d3c1ef8"},{"url":"https://git.kernel.org/stable/c/4b6f7bccc6559ae5c54573c284fe76eafc9989b2"},{"url":"https://git.kernel.org/stable/c/2542516a147bfad740e7e411c251b639fad260ff"},{"url":"https://git.kernel.org/stable/c/79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77"},{"url":"https://git.kernel.org/stable/c/d2ecaaab6a4f165abb54cdf61be60030b5782bf8"},{"url":"https://git.kernel.org/stable/c/68d664f1b4efe525e99154b7058fcb0378bdaff7"},{"url":"https://git.kernel.org/stable/c/dd739517560c8d0ec4463a53e717bf40b988d7da"},{"url":"https://git.kernel.org/stable/c/e504cc888f42999dd76b6a43788c422610f2aad2"}],"title":"media: s2255: bound JPEG frame size before copying into the buffer","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89879","datePublished":"2026-09-16T10:31:45.564Z","dateReserved":"2026-09-11T19:38:34.772Z","dateUpdated":"2026-09-16T10:31:45.564Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:16:56","lastModifiedDate":"2026-09-16 11:16:56","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89879","Ordinal":"1","Title":"media: s2255: bound JPEG frame size before copying into the buff","CVE":"CVE-2026-89879","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89879","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: bound JPEG frame size before copying into the buffer\n\ns2255_fillbuff() memcpy()s vc->jpg_size bytes of a captured JPEG/MJPEG\nframe into the vb2 plane.  vc->jpg_size is taken verbatim from the\nS2255_MARKER_FRAME header the device sends (pdword[4] in save_frame())\nand, unlike the frame payload length just above it, is never bounded:\n\n\tpayload = le32_to_cpu(pdword[3]);\n\tif (payload > vc->req_image_size)\t/* payload is checked ... */\n\t\treturn -EINVAL;\n\tvc->pkt_size = payload;\n\tvc->jpg_size = le32_to_cpu(pdword[4]);\t/* ... jpg_size is not */\n\nA malicious or malfunctioning device can therefore report a jpg_size\nlarger than the destination vb2 plane, and the memcpy() writes past it.\njpg_size is a signed int, so a value with the top bit set also turns\ninto a huge length.\n\nReject a frame whose jpg_size is negative or exceeds the plane size\nbefore copying it.","Type":"Description","Title":"media: s2255: bound JPEG frame size before copying into the buff"}]}}}