| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait\n\nWhile performing fast composition switch, there is a possibility that the\nprocess of ffs_ep0_write/ffs_ep0_read get into a race condition\ndue to ep0req being freed up from functionfs_unbind.\n\nConsider the scenario that the ffs_ep0_write calls the ffs_ep0_queue_wait\nby taking a lock &ffs->ev.waitq.lock. However, the functionfs_unbind isn't\nbounded so it can go ahead and mark the ep0req to NULL, and since there\nis no NULL check in ffs_ep0_queue_wait we will end up in use-after-free.\n\nFix this by making a serialized execution between the two functions using\na mutex_lock(ffs->mutex)." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/usb/gadget/function/f_fs.c" |
| ], |
| "versions": [ |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "facf353c9e8d7885b686d9a4b173d4e0af6441d2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "e9036e951f93fb8d7b5e9d6e2c7f94a4da312ae4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "a8d40942df074f4ebcb9bd3413596d92f323b064", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "6dd9ea05534f323668db94fcc2726c7a84547e78", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "ae8e136bcaae96163b5821984de1036efc9abb1a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "6aee197b7fbcd61596a78b47d553f2f99111f217", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ddf8abd2599491cbad959c700b90ba72a5dce8d0", |
| "lessThan": "6a19da111057f69214b97c62fb0ac59023970850", |
| "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/usb/gadget/function/f_fs.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.35", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.35", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.305", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.272", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.231", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.166", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.91", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.9", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.2", |
| "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": "2.6.35", |
| "versionEndExcluding": "4.14.305" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "4.19.272" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "5.4.231" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "5.10.166" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "5.15.91" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "6.1.9" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "6.2" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/facf353c9e8d7885b686d9a4b173d4e0af6441d2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e9036e951f93fb8d7b5e9d6e2c7f94a4da312ae4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a8d40942df074f4ebcb9bd3413596d92f323b064" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6dd9ea05534f323668db94fcc2726c7a84547e78" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ae8e136bcaae96163b5821984de1036efc9abb1a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6aee197b7fbcd61596a78b47d553f2f99111f217" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6a19da111057f69214b97c62fb0ac59023970850" |
| } |
| ], |
| "title": "usb: gadget: f_fs: Prevent race during ffs_ep0_queue_wait", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-49755", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
