cve-2022-49890
Vulnerability from cvelistv5
Published
2025-05-01 14:10
Modified
2025-05-01 14:10
Severity ?
EPSS score ?
Summary
capabilities: fix potential memleak on error path from vfs_getxattr_alloc()
References
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "security/commoncap.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "6bb00eb21c0fbf18e5d3538c9ff0cf63fd0ace85", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" }, { "lessThan": "90577bcc01c4188416a47269f8433f70502abe98", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" }, { "lessThan": "0c3e6288da650d1ec911a259c77bc2d88e498603", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" }, { "lessThan": "cdf01c807e974048c43c7fd3ca574f6086a57906", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" }, { "lessThan": "2de8eec8afb75792440b8900a01d52b8f6742fd1", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" }, { "lessThan": "7480aeff0093d8c54377553ec6b31110bea37b4d", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" }, { "lessThan": "8cf0a1bc12870d148ae830a4ba88cfdf0e879cee", "status": "affected", "version": "8db6c34f1dbc8e06aa016a9b829b06902c3e1340", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "security/commoncap.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "4.14" }, { "lessThan": "4.14", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.299", "versionType": "semver" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.265", "versionType": "semver" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.224", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.154", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.78", "versionType": "semver" }, { "lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.8", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.1", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncapabilities: fix potential memleak on error path from vfs_getxattr_alloc()\n\nIn cap_inode_getsecurity(), we will use vfs_getxattr_alloc() to\ncomplete the memory allocation of tmpbuf, if we have completed\nthe memory allocation of tmpbuf, but failed to call handler-\u003eget(...),\nthere will be a memleak in below logic:\n\n |-- ret = (int)vfs_getxattr_alloc(mnt_userns, ...)\n | /* ^^^ alloc for tmpbuf */\n |-- value = krealloc(*xattr_value, error + 1, flags)\n | /* ^^^ alloc memory */\n |-- error = handler-\u003eget(handler, ...)\n | /* error! */\n |-- *xattr_value = value\n | /* xattr_value is \u0026tmpbuf (memory leak!) */\n\nSo we will try to free(tmpbuf) after vfs_getxattr_alloc() fails to fix it.\n\n[PM: subject line and backtrace tweaks]" } ], "providerMetadata": { "dateUpdated": "2025-05-01T14:10:34.481Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/6bb00eb21c0fbf18e5d3538c9ff0cf63fd0ace85" }, { "url": "https://git.kernel.org/stable/c/90577bcc01c4188416a47269f8433f70502abe98" }, { "url": "https://git.kernel.org/stable/c/0c3e6288da650d1ec911a259c77bc2d88e498603" }, { "url": "https://git.kernel.org/stable/c/cdf01c807e974048c43c7fd3ca574f6086a57906" }, { "url": "https://git.kernel.org/stable/c/2de8eec8afb75792440b8900a01d52b8f6742fd1" }, { "url": "https://git.kernel.org/stable/c/7480aeff0093d8c54377553ec6b31110bea37b4d" }, { "url": "https://git.kernel.org/stable/c/8cf0a1bc12870d148ae830a4ba88cfdf0e879cee" } ], "title": "capabilities: fix potential memleak on error path from vfs_getxattr_alloc()", "x_generator": { "engine": "bippy-1.1.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2022-49890", "datePublished": "2025-05-01T14:10:34.481Z", "dateReserved": "2025-05-01T14:05:17.242Z", "dateUpdated": "2025-05-01T14:10:34.481Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2022-49890\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:14.000\",\"lastModified\":\"2025-05-01T15:16:14.000\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncapabilities: fix potential memleak on error path from vfs_getxattr_alloc()\\n\\nIn cap_inode_getsecurity(), we will use vfs_getxattr_alloc() to\\ncomplete the memory allocation of tmpbuf, if we have completed\\nthe memory allocation of tmpbuf, but failed to call handler-\u003eget(...),\\nthere will be a memleak in below logic:\\n\\n |-- ret = (int)vfs_getxattr_alloc(mnt_userns, ...)\\n | /* ^^^ alloc for tmpbuf */\\n |-- value = krealloc(*xattr_value, error + 1, flags)\\n | /* ^^^ alloc memory */\\n |-- error = handler-\u003eget(handler, ...)\\n | /* error! */\\n |-- *xattr_value = value\\n | /* xattr_value is \u0026tmpbuf (memory leak!) */\\n\\nSo we will try to free(tmpbuf) after vfs_getxattr_alloc() fails to fix it.\\n\\n[PM: subject line and backtrace tweaks]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0c3e6288da650d1ec911a259c77bc2d88e498603\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2de8eec8afb75792440b8900a01d52b8f6742fd1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6bb00eb21c0fbf18e5d3538c9ff0cf63fd0ace85\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7480aeff0093d8c54377553ec6b31110bea37b4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8cf0a1bc12870d148ae830a4ba88cfdf0e879cee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/90577bcc01c4188416a47269f8433f70502abe98\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cdf01c807e974048c43c7fd3ca574f6086a57906\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.