205 lines
9.8 KiB
JSON
205 lines
9.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49878",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-05-01T14:05:17.239Z",
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"datePublished": "2025-05-01T14:10:26.389Z",
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"dateUpdated": "2026-05-11T19:08:29.598Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:08:29.598Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, verifier: Fix memory leak in array reallocation for stack state\n\nIf an error (NULL) is returned by krealloc(), callers of realloc_array()\nwere setting their allocation pointers to NULL, but on error krealloc()\ndoes not touch the original allocation. This would result in a memory\nresource leak. Instead, free the old allocation on the error handling\npath.\n\nThe memory leak information is as follows as also reported by Zhengchao:\n\n unreferenced object 0xffff888019801800 (size 256):\n comm \"bpf_repo\", pid 6490, jiffies 4294959200 (age 17.170s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<00000000b211474b>] __kmalloc_node_track_caller+0x45/0xc0\n [<0000000086712a0b>] krealloc+0x83/0xd0\n [<00000000139aab02>] realloc_array+0x82/0xe2\n [<00000000b1ca41d1>] grow_stack_state+0xfb/0x186\n [<00000000cd6f36d2>] check_mem_access.cold+0x141/0x1341\n [<0000000081780455>] do_check_common+0x5358/0xb350\n [<0000000015f6b091>] bpf_check.cold+0xc3/0x29d\n [<000000002973c690>] bpf_prog_load+0x13db/0x2240\n [<00000000028d1644>] __sys_bpf+0x1605/0x4ce0\n [<00000000053f29bd>] __x64_sys_bpf+0x75/0xb0\n [<0000000056fedaf5>] do_syscall_64+0x35/0x80\n [<000000002bd58261>] entry_SYSCALL_64_after_hwframe+0x63/0xcd"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "c69431aab67a912836e5831f03d99a819c14c9c3",
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"lessThan": "06615967d4889b08b19ff3dda96e8b131282f73d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c69431aab67a912836e5831f03d99a819c14c9c3",
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"lessThan": "3e210891c4a4c2d858cd6f9f61d5809af251d4df",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c69431aab67a912836e5831f03d99a819c14c9c3",
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"lessThan": "42378a9ca55347102bbf86708776061d8fe3ece2",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "5.14",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.14",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.79",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.0.9",
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"lessThanOrEqual": "6.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.14",
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"versionEndExcluding": "5.15.79"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.14",
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"versionEndExcluding": "6.0.9"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.14",
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"versionEndExcluding": "6.1"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/06615967d4889b08b19ff3dda96e8b131282f73d"
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},
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{
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"url": "https://git.kernel.org/stable/c/3e210891c4a4c2d858cd6f9f61d5809af251d4df"
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},
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{
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"url": "https://git.kernel.org/stable/c/42378a9ca55347102bbf86708776061d8fe3ece2"
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}
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],
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"title": "bpf, verifier: Fix memory leak in array reallocation for stack state",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"cweId": "CWE-401",
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"lang": "en",
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"description": "CWE-401 Missing Release of Memory after Effective Lifetime"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2025-10-01T16:02:47.368598Z",
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"id": "CVE-2022-49878",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-01T16:02:49.951Z"
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}
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}
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]
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}
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} |