{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47095", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-29T22:33:44.300Z", "datePublished": "2024-03-04T18:10:46.553Z", "dateUpdated": "2026-05-11T13:47:56.919Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:47:56.919Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: ssif: initialize ssif_info->client early\n\nDuring probe ssif_info->client is dereferenced in error path. However,\nit is set when some of the error checking has already been done. This\ncauses following kernel crash if an error path is taken:\n\n[ 30.645593][ T674] ipmi_ssif 0-000e: ipmi_ssif: Not probing, Interface already present\n[ 30.657616][ T674] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000088\n...\n[ 30.657723][ T674] pc : __dev_printk+0x28/0xa0\n[ 30.657732][ T674] lr : _dev_err+0x7c/0xa0\n...\n[ 30.657772][ T674] Call trace:\n[ 30.657775][ T674] __dev_printk+0x28/0xa0\n[ 30.657778][ T674] _dev_err+0x7c/0xa0\n[ 30.657781][ T674] ssif_probe+0x548/0x900 [ipmi_ssif 62ce4b08badc1458fd896206d9ef69a3c31f3d3e]\n[ 30.657791][ T674] i2c_device_probe+0x37c/0x3c0\n...\n\nInitialize ssif_info->client before any error path can be taken. Clear\ni2c_client data in the error path to prevent the dangling pointer from\nleaking." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/char/ipmi/ipmi_ssif.c" ], "versions": [ { "version": "c4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c", "lessThan": "8efd6a3391f7b0b19fb0c38e50add06ca30c94af", "status": "affected", "versionType": "git" }, { "version": "c4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c", "lessThan": "1f6ab847461ce7dd89ae9db2dd4658c993355d7c", "status": "affected", "versionType": "git" }, { "version": "c4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c", "lessThan": "77a7311ca167aa5b7055c549a940a56e73ee5f29", "status": "affected", "versionType": "git" }, { "version": "c4436c9149c5d2bc0c49ab57ec85c75ea1c4d61c", "lessThan": "34f35f8f14bc406efc06ee4ff73202c6fd245d15", "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/char/ipmi/ipmi_ssif.c" ], "versions": [ { "version": "5.4", "status": "affected" }, { "version": "0", "lessThan": "5.4", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.169", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.89", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.12", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16", "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": "5.4", "versionEndExcluding": "5.4.169" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.10.89" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.15.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8efd6a3391f7b0b19fb0c38e50add06ca30c94af" }, { "url": "https://git.kernel.org/stable/c/1f6ab847461ce7dd89ae9db2dd4658c993355d7c" }, { "url": "https://git.kernel.org/stable/c/77a7311ca167aa5b7055c549a940a56e73ee5f29" }, { "url": "https://git.kernel.org/stable/c/34f35f8f14bc406efc06ee4ff73202c6fd245d15" } ], "title": "ipmi: ssif: initialize ssif_info->client early", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47095", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-03-04T20:32:21.801460Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:22:07.482Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.950Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/8efd6a3391f7b0b19fb0c38e50add06ca30c94af", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1f6ab847461ce7dd89ae9db2dd4658c993355d7c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/77a7311ca167aa5b7055c549a940a56e73ee5f29", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/34f35f8f14bc406efc06ee4ff73202c6fd245d15", "tags": [ "x_transferred" ] } ] } ] } }