282 lines
14 KiB
JSON
282 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-68217",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-07-30T09:28:09.375Z",
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"datePublished": "2026-08-10T12:00:36.773Z",
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"dateUpdated": "2026-11-06T16:55:09.601Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-19T16:31:48.858Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pwc: Drain fill_buf on start_streaming() failure\n\npwc_isoc_init() submits its isochronous URBs with\nusb_submit_urb(.., GFP_KERNEL) in a loop. After the first URB is\nsubmitted, its completion handler pwc_isoc_handler() can run on another\nCPU before the loop finishes:\n\n start_streaming()\n pwc_isoc_init()\n usb_submit_urb(urbs[0], GFP_KERNEL)\n pwc_isoc_handler(urbs[0])\n pdev->fill_buf =\n pwc_get_next_fill_buf(pdev)\n usb_submit_urb(urbs[i>0], ..) -> fails\n pwc_isoc_cleanup(pdev) /* kills URBs */\n return ret;\n pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED)\n\npwc_get_next_fill_buf() detaches a buffer from pdev->queued_bufs and\nstores it in pdev->fill_buf. The error path in start_streaming() only\ndrains pdev->queued_bufs, so the buffer parked in pdev->fill_buf is\nleaked. vb2_start_streaming() then triggers\nWARN_ON(owned_by_drv_count).\n\nstop_streaming() already handles this since commit 80b0963e1698\n(\"[media] pwc: fix WARN_ON\"), which added the fill_buf drain in the\nteardown path but not in the start_streaming() error path. Mirror that\nhandling on failure so start_streaming() returns with no buffer owned\nby the driver.\n\nIssue identified by automated review of the INV-003 series at\nhttps://sashiko.dev/"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/media/usb/pwc/pwc-if.c"
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],
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"versions": [
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "97f3c15957ec7e6d249f05407ad947c0644df24d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "a4afffd148991a826e8995362fb10cf8705c1130",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "eabe9a59640698137d7382d5b549e95dc37f7565",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "a56e7641e09bd80b976e944ae759109b86fd5b38",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "acc789b2173070638cad89c2b61d33ed338be0dd",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "9afd605dcd96c7a45f338eded1de16679b30e1df",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "5d4812668b03f823b5044789d6aa77fe56b42587",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "885fe18f5542fe283a17f70583383c6cadcba1c3",
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"lessThan": "906e410dcffbbd99fb4081abab817a830033aa28",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/media/usb/pwc/pwc-if.c"
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],
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"versions": [
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{
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"version": "3.1",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.1",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.265",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.216",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.183",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.148",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.101",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.42",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "5.10.265"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "5.15.216"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "6.1.183"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "6.6.148"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "6.12.101"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "6.18.42"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "7.1.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/97f3c15957ec7e6d249f05407ad947c0644df24d"
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},
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{
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"url": "https://git.kernel.org/stable/c/a4afffd148991a826e8995362fb10cf8705c1130"
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},
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{
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"url": "https://git.kernel.org/stable/c/eabe9a59640698137d7382d5b549e95dc37f7565"
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},
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{
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"url": "https://git.kernel.org/stable/c/a56e7641e09bd80b976e944ae759109b86fd5b38"
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},
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{
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"url": "https://git.kernel.org/stable/c/acc789b2173070638cad89c2b61d33ed338be0dd"
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},
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{
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"url": "https://git.kernel.org/stable/c/9afd605dcd96c7a45f338eded1de16679b30e1df"
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},
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{
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"url": "https://git.kernel.org/stable/c/5d4812668b03f823b5044789d6aa77fe56b42587"
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},
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{
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"url": "https://git.kernel.org/stable/c/906e410dcffbbd99fb4081abab817a830033aa28"
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}
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],
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"title": "media: pwc: Drain fill_buf on start_streaming() failure",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-68217",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:44:48.652931Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T16:55:09.601Z"
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}
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}
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]
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}
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} |