| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: avoid double fput() on failed usercopy\n\nIf the copy back to userland fails for the FASTRPC_IOCTL_ALLOC_DMA_BUFF\nioctl(), we shouldn't assume that 'buf->dmabuf' is still valid. In fact,\ndma_buf_fd() called fd_install() before, i.e. \"consumed\" one reference,\nleaving us with none.\n\nCalling dma_buf_put() will therefore put a reference we no longer own,\nleading to a valid file descritor table entry for an already released\n'file' object which is a straight use-after-free.\n\nSimply avoid calling dma_buf_put() and rely on the process exit code to\ndo the necessary cleanup, if needed, i.e. if the file descriptor is\nstill valid." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/misc/fastrpc.c" |
| ], |
| "versions": [ |
| { |
| "version": "6cffd79504ce040f460831030d3069fa1c99bb71", |
| "lessThan": "4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "6cffd79504ce040f460831030d3069fa1c99bb71", |
| "lessThan": "a5ce7ee5fcc07583159f54ab4af5164de00148f5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "6cffd79504ce040f460831030d3069fa1c99bb71", |
| "lessThan": "e4382d0a39f9a1e260d62fdc079ddae5293c037d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "6cffd79504ce040f460831030d3069fa1c99bb71", |
| "lessThan": "76f85c307ef9f10aa2cef1b1d5ee654c1f3345fc", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "6cffd79504ce040f460831030d3069fa1c99bb71", |
| "lessThan": "46963e2e0629cb31c96b1d47ddd89dc3d8990b34", |
| "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/misc/fastrpc.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.1", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.1", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.180", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.101", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.24", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16.10", |
| "lessThanOrEqual": "5.16.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17", |
| "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": "5.1", |
| "versionEndExcluding": "5.4.180" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.1", |
| "versionEndExcluding": "5.10.101" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.1", |
| "versionEndExcluding": "5.15.24" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.1", |
| "versionEndExcluding": "5.16.10" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.1", |
| "versionEndExcluding": "5.17" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a5ce7ee5fcc07583159f54ab4af5164de00148f5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e4382d0a39f9a1e260d62fdc079ddae5293c037d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/76f85c307ef9f10aa2cef1b1d5ee654c1f3345fc" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/46963e2e0629cb31c96b1d47ddd89dc3d8990b34" |
| } |
| ], |
| "title": "misc: fastrpc: avoid double fput() on failed usercopy", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-48821", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
