{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48821", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.901Z", "datePublished": "2024-07-16T11:44:07.965Z", "dateUpdated": "2024-11-04T12:17:14.307Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T12:17:14.307Z"}, "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": "6cffd79504ce", "lessThan": "4e6fd2b5fcf8", "status": "affected", "versionType": "git"}, {"version": "6cffd79504ce", "lessThan": "a5ce7ee5fcc0", "status": "affected", "versionType": "git"}, {"version": "6cffd79504ce", "lessThan": "e4382d0a39f9", "status": "affected", "versionType": "git"}, {"version": "6cffd79504ce", "lessThan": "76f85c307ef9", "status": "affected", "versionType": "git"}, {"version": "6cffd79504ce", "lessThan": "46963e2e0629", "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"}]}], "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-9e1c9544281a"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.487Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a5ce7ee5fcc07583159f54ab4af5164de00148f5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e4382d0a39f9a1e260d62fdc079ddae5293c037d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/76f85c307ef9f10aa2cef1b1d5ee654c1f3345fc", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/46963e2e0629cb31c96b1d47ddd89dc3d8990b34", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48821", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:57:59.542299Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:12.159Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a5ce7ee5fcc07583159f54ab4af5164de00148f5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e4382d0a39f9a1e260d62fdc079ddae5293c037d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/76f85c307ef9f10aa2cef1b1d5ee654c1f3345fc", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/46963e2e0629cb31c96b1d47ddd89dc3d8990b34", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.487Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48821", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:57:59.542299Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:21.325Z"}}], "cna": {"title": "misc: fastrpc: avoid double fput() on failed usercopy", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6cffd79504ce", "lessThan": "4e6fd2b5fcf8", "versionType": "git"}, {"status": "affected", "version": "6cffd79504ce", "lessThan": "a5ce7ee5fcc0", "versionType": "git"}, {"status": "affected", "version": "6cffd79504ce", "lessThan": "e4382d0a39f9", "versionType": "git"}, {"status": "affected", "version": "6cffd79504ce", "lessThan": "76f85c307ef9", "versionType": "git"}, {"status": "affected", "version": "6cffd79504ce", "lessThan": "46963e2e0629", "versionType": "git"}], "programFiles": ["drivers/misc/fastrpc.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.1"}, {"status": "unaffected", "version": "0", "lessThan": "5.1", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.180", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.101", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.24", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.10", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/misc/fastrpc.c"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "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."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T12:17:14.307Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48821", "state": "PUBLISHED", "dateUpdated": "2024-11-04T12:17:14.307Z", "dateReserved": "2024-07-16T11:38:08.901Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-16T11:44:07.965Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc: fastrpc: evitar doble fput() en copia de usuario fallida. Si la copia al \u00e1rea de usuario falla para FASTRPC_IOCTL_ALLOC_DMA_BUFF ioctl(), no debemos asumir que 'buf->dmabuf' aun es v\u00e1lido. De hecho, dma_buf_fd() llam\u00f3 a fd_install() antes, es decir, \"consumi\u00f3\" una referencia, dej\u00e1ndonos sin ninguna. Por lo tanto, llamar a dma_buf_put() colocar\u00e1 una referencia que ya no poseemos, lo que conducir\u00e1 a una entrada v\u00e1lida en la tabla de descripci\u00f3n de archivos para un objeto 'archivo' ya publicado que es un use-after-free directo. Simplemente evite llamar a dma_buf_put() y conf\u00ede en el c\u00f3digo de salida del proceso para realizar la limpieza necesaria, si es necesario, es decir, si el descriptor del archivo a\u00fan es v\u00e1lido."}], "id": "CVE-2022-48821", "lastModified": "2024-07-16T13:43:58.773", "metrics": {}, "published": "2024-07-16T12:15:06.010", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46963e2e0629cb31c96b1d47ddd89dc3d8990b34"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4e6fd2b5fcf8e7119305a6042bd92e7f2b9ed215"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76f85c307ef9f10aa2cef1b1d5ee654c1f3345fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a5ce7ee5fcc07583159f54ab4af5164de00148f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e4382d0a39f9a1e260d62fdc079ddae5293c037d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: misc: fastrpc: avoid double fput() on failed usercopy", "id": "2298160", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298160"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-415", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmisc: fastrpc: avoid double fput() on failed usercopy\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.\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.\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."], "name": "CVE-2022-48821", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48821\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48821\nhttps://lore.kernel.org/linux-cve-announce/2024071650-CVE-2022-48821-5c97@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 5.4.180, kernel 5.10.101, kernel 5.15.24, kernel 5.16.10, kernel 5.17"}