cve-2022-49875
Vulnerability from cvelistv5
Published
2025-05-01 14:10
Modified
2025-05-01 14:10
Severity ?
EPSS score ?
Summary
bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
References
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "tools/bpf/bpftool/common.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "8c80b2fca4112d724dde477aed13f7b0510a2792", "status": "affected", "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f", "versionType": "git" }, { "lessThan": "6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a", "status": "affected", "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f", "versionType": "git" }, { "lessThan": "da5161ba94c5e9182c301dd4f09c94f715c068bd", "status": "affected", "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f", "versionType": "git" }, { "lessThan": "34de8e6e0e1f66e431abf4123934a2581cb5f133", "status": "affected", "version": "75a1e792c335b5c6d7fdb1014da47aeb64c5944f", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "tools/bpf/bpftool/common.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "5.7" }, { "lessThan": "5.7", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.155", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.79", "versionType": "semver" }, { "lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.9", "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\nbpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE\n\nWhen using bpftool to pin {PROG, MAP, LINK} without FILE,\nsegmentation fault will occur. The reson is that the lack\nof FILE will cause strlen to trigger NULL pointer dereference.\nThe corresponding stacktrace is shown below:\n\ndo_pin\n do_pin_any\n do_pin_fd\n mount_bpffs_for_pin\n strlen(name) \u003c- NULL pointer dereference\n\nFix it by adding validation to the common process." } ], "providerMetadata": { "dateUpdated": "2025-05-01T14:10:24.427Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792" }, { "url": "https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a" }, { "url": "https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd" }, { "url": "https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133" } ], "title": "bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE", "x_generator": { "engine": "bippy-1.1.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2022-49875", "datePublished": "2025-05-01T14:10:24.427Z", "dateReserved": "2025-05-01T14:05:17.238Z", "dateUpdated": "2025-05-01T14:10:24.427Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2022-49875\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:12.450\",\"lastModified\":\"2025-05-01T15:16:12.450\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE\\n\\nWhen using bpftool to pin {PROG, MAP, LINK} without FILE,\\nsegmentation fault will occur. The reson is that the lack\\nof FILE will cause strlen to trigger NULL pointer dereference.\\nThe corresponding stacktrace is shown below:\\n\\ndo_pin\\n do_pin_any\\n do_pin_fd\\n mount_bpffs_for_pin\\n strlen(name) \u003c- NULL pointer dereference\\n\\nFix it by adding validation to the common process.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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