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-2022-49837",
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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": "2025-05-01T14:05:17.229Z",
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"datePublished": "2025-05-01T14:09:54.141Z",
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"dateUpdated": "2026-05-11T19:07:44.113Z"
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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": "2026-05-11T19:07:44.113Z"
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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: Fix memory leaks in __check_func_call\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff88817139d000 (size 2048):\n comm \"test_progs\", pid 33246, jiffies 4307381979 (age 45851.820s)\n hex dump (first 32 bytes):\n 01 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 [<0000000045f075f0>] kmalloc_trace+0x27/0xa0\n [<0000000098b7c90a>] __check_func_call+0x316/0x1230\n [<00000000b4c3c403>] check_helper_call+0x172e/0x4700\n [<00000000aa3875b7>] do_check+0x21d8/0x45e0\n [<000000001147357b>] do_check_common+0x767/0xaf0\n [<00000000b5a595b4>] bpf_check+0x43e3/0x5bc0\n [<0000000011e391b1>] bpf_prog_load+0xf26/0x1940\n [<0000000007f765c0>] __sys_bpf+0xd2c/0x3650\n [<00000000839815d6>] __x64_sys_bpf+0x75/0xc0\n [<00000000946ee250>] do_syscall_64+0x3b/0x90\n [<0000000000506b7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root case here is: In function prepare_func_exit(), the callee is\nnot released in the abnormal scenario after \"state->curframe--;\". To\nfix, move \"state->curframe--;\" to the very bottom of the function,\nright when we free callee and reset frame[] pointer to NULL, as Andrii\nsuggested.\n\nIn addition, function __check_func_call() has a similar problem. In\nthe abnormal scenario before \"state->curframe++;\", the callee also\nshould be released by free_func_state()."
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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": "fd978bf7fd312581a7ca454a991f0ffb34c4204b",
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"lessThan": "d4944497827a3d14bc5a26dbcfb7433eb5a956c0",
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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": "fd978bf7fd312581a7ca454a991f0ffb34c4204b",
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"lessThan": "83946d772e756734a900ef99dbe0aeda506adf37",
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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": "fd978bf7fd312581a7ca454a991f0ffb34c4204b",
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"lessThan": "eb86559a691cea5fa63e57a03ec3dc9c31e97955",
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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": "4.20",
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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": "4.20",
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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": "5.15.80",
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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": "6.0.10",
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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": "4.20",
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"versionEndExcluding": "5.15.80"
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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": "4.20",
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"versionEndExcluding": "6.0.10"
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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": "4.20",
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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/d4944497827a3d14bc5a26dbcfb7433eb5a956c0"
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},
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{
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"url": "https://git.kernel.org/stable/c/83946d772e756734a900ef99dbe0aeda506adf37"
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},
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{
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"url": "https://git.kernel.org/stable/c/eb86559a691cea5fa63e57a03ec3dc9c31e97955"
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}
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],
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"title": "bpf: Fix memory leaks in __check_func_call",
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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": "2025-10-01T17:02:23.476033Z",
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"id": "CVE-2022-49837",
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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": "2025-10-01T17:02:27.099Z"
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}
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}
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]
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}
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} |