{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49220", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.292Z", "datePublished": "2025-02-26T01:55:52.821Z", "dateUpdated": "2025-05-04T08:32:44.211Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:32:44.211Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndax: make sure inodes are flushed before destroy cache\n\nA bug can be triggered by following command\n\n$ modprobe nd_pmem && modprobe -r nd_pmem\n\n[ 10.060014] BUG dax_cache (Not tainted): Objects remaining in dax_cache on __kmem_cache_shutdown()\n[ 10.060938] Slab 0x0000000085b729ac objects=9 used=1 fp=0x000000004f5ae469 flags=0x200000000010200(slab|head|node)\n[ 10.062433] Call Trace:\n[ 10.062673] dump_stack_lvl+0x34/0x44\n[ 10.062865] slab_err+0x90/0xd0\n[ 10.063619] __kmem_cache_shutdown+0x13b/0x2f0\n[ 10.063848] kmem_cache_destroy+0x4a/0x110\n[ 10.064058] __x64_sys_delete_module+0x265/0x300\n\nThis is caused by dax_fs_exit() not flushing inodes before destroy cache.\nTo fix this issue, call rcu_barrier() before destroy cache."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dax/super.c"], "versions": [{"version": "7b6be8444e0f0dd675b54d059793423d3c9b4c03", "lessThan": "770d42fff12d8595adda9025a0b92091f543e775", "status": "affected", "versionType": "git"}, {"version": "7b6be8444e0f0dd675b54d059793423d3c9b4c03", "lessThan": "ec376f5c11c88c0215d173599db8449cd4196759", "status": "affected", "versionType": "git"}, {"version": "7b6be8444e0f0dd675b54d059793423d3c9b4c03", "lessThan": "e2951eaa9398415ac054b7bd80b8163b6838ead4", "status": "affected", "versionType": "git"}, {"version": "7b6be8444e0f0dd675b54d059793423d3c9b4c03", "lessThan": "f2a1e0eb70c2d954176c07d75d28742bde30e9f3", "status": "affected", "versionType": "git"}, {"version": "7b6be8444e0f0dd675b54d059793423d3c9b4c03", "lessThan": "b786abe7c67c6ef71410c8e23292b3091d616ad1", "status": "affected", "versionType": "git"}, {"version": "7b6be8444e0f0dd675b54d059793423d3c9b4c03", "lessThan": "a7e8de822e0b1979f08767c751f6c8a9c1d4ad86", "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/dax/super.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.189", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.110", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.33", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.19", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.2", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "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": "4.12", "versionEndExcluding": "5.4.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.10.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.16.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.17.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/770d42fff12d8595adda9025a0b92091f543e775"}, {"url": "https://git.kernel.org/stable/c/ec376f5c11c88c0215d173599db8449cd4196759"}, {"url": "https://git.kernel.org/stable/c/e2951eaa9398415ac054b7bd80b8163b6838ead4"}, {"url": "https://git.kernel.org/stable/c/f2a1e0eb70c2d954176c07d75d28742bde30e9f3"}, {"url": "https://git.kernel.org/stable/c/b786abe7c67c6ef71410c8e23292b3091d616ad1"}, {"url": "https://git.kernel.org/stable/c/a7e8de822e0b1979f08767c751f6c8a9c1d4ad86"}], "title": "dax: make sure inodes are flushed before destroy cache", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndax: make sure inodes are flushed before destroy cache\n\nA bug can be triggered by following command\n\n$ modprobe nd_pmem && modprobe -r nd_pmem\n\n[ 10.060014] BUG dax_cache (Not tainted): Objects remaining in dax_cache on __kmem_cache_shutdown()\n[ 10.060938] Slab 0x0000000085b729ac objects=9 used=1 fp=0x000000004f5ae469 flags=0x200000000010200(slab|head|node)\n[ 10.062433] Call Trace:\n[ 10.062673] dump_stack_lvl+0x34/0x44\n[ 10.062865] slab_err+0x90/0xd0\n[ 10.063619] __kmem_cache_shutdown+0x13b/0x2f0\n[ 10.063848] kmem_cache_destroy+0x4a/0x110\n[ 10.064058] __x64_sys_delete_module+0x265/0x300\n\nThis is caused by dax_fs_exit() not flushing inodes before destroy cache.\nTo fix this issue, call rcu_barrier() before destroy cache."}], "id": "CVE-2022-49220", "lastModified": "2025-02-26T07:00:59.070", "metrics": {}, "published": "2025-02-26T07:00:59.070", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/770d42fff12d8595adda9025a0b92091f543e775"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a7e8de822e0b1979f08767c751f6c8a9c1d4ad86"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b786abe7c67c6ef71410c8e23292b3091d616ad1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2951eaa9398415ac054b7bd80b8163b6838ead4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ec376f5c11c88c0215d173599db8449cd4196759"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2a1e0eb70c2d954176c07d75d28742bde30e9f3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"affected_release": [{"advisory": "RHSA-2023:6583", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6583", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "kernel: dax: make sure inodes are flushed before destroy cache", "id": "2348260", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348260"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndax: make sure inodes are flushed before destroy cache\nA bug can be triggered by following command\n$ modprobe nd_pmem && modprobe -r nd_pmem\n[ 10.060014] BUG dax_cache (Not tainted): Objects remaining in dax_cache on __kmem_cache_shutdown()\n[ 10.060938] Slab 0x0000000085b729ac objects=9 used=1 fp=0x000000004f5ae469 flags=0x200000000010200(slab|head|node)\n[ 10.062433] Call Trace:\n[ 10.062673] dump_stack_lvl+0x34/0x44\n[ 10.062865] slab_err+0x90/0xd0\n[ 10.063619] __kmem_cache_shutdown+0x13b/0x2f0\n[ 10.063848] kmem_cache_destroy+0x4a/0x110\n[ 10.064058] __x64_sys_delete_module+0x265/0x300\nThis is caused by dax_fs_exit() not flushing inodes before destroy cache.\nTo fix this issue, call rcu_barrier() before destroy cache."], "name": "CVE-2022-49220", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49220\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49220\nhttps://lore.kernel.org/linux-cve-announce/2025022621-CVE-2022-49220-7247@gregkh/T"], "threat_severity": "Moderate"}