{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53185", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.390Z", "datePublished": "2026-06-25T08:38:58.853Z", "dateUpdated": "2026-06-28T06:39:59.910Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:39:59.910Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nzram: fix use-after-free in zram_bvec_write_partial()\n\nzram_read_page() picks the sync or async backing device read path based on\nwhether the parent bio is NULL. zram_bvec_write_partial() passes its\nparent bio down, so for ZRAM_WB slots the read is dispatched\nasynchronously and zram_read_page() returns 0 while the bio is still in\nflight. The caller then runs memcpy_from_bvec(), zram_write_page() and\n__free_page() on the buffer, leaving the async read to write into a freed\npage.\n\nzram_bvec_read_partial() was switched to NULL in commit 4e3c87b9421d\n(\"zram: fix synchronous reads\") for the same reason; the write_partial\ncounterpart was missed."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/zram/zram_drv.c"], "versions": [{"version": "8e654f8fbff52ac483fb69957222853d7e2fc588", "lessThan": "0c2821665ff71be3f4b07ecece384669f2877f6a", "status": "affected", "versionType": "git"}, {"version": "8e654f8fbff52ac483fb69957222853d7e2fc588", "lessThan": "77a602b505ce4802915853cfc435a4722fab3e64", "status": "affected", "versionType": "git"}, {"version": "8e654f8fbff52ac483fb69957222853d7e2fc588", "lessThan": "c96786d6ff1acc1d54d9241e97767554c1dfdd5b", "status": "affected", "versionType": "git"}, {"version": "8e654f8fbff52ac483fb69957222853d7e2fc588", "lessThan": "198b5a14cca27263b9c14b20114c8092de15dfcb", "status": "affected", "versionType": "git"}, {"version": "8e654f8fbff52ac483fb69957222853d7e2fc588", "lessThan": "732fd9f0b9c1cdc6dfd77162ded60df005182cc0", "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/block/zram/zram_drv.c"], "versions": [{"version": "4.14", "status": "affected"}, {"version": "0", "lessThan": "4.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.143", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "4.14", "versionEndExcluding": "6.6.143"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.12.94"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.18.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0c2821665ff71be3f4b07ecece384669f2877f6a"}, {"url": "https://git.kernel.org/stable/c/77a602b505ce4802915853cfc435a4722fab3e64"}, {"url": "https://git.kernel.org/stable/c/c96786d6ff1acc1d54d9241e97767554c1dfdd5b"}, {"url": "https://git.kernel.org/stable/c/198b5a14cca27263b9c14b20114c8092de15dfcb"}, {"url": "https://git.kernel.org/stable/c/732fd9f0b9c1cdc6dfd77162ded60df005182cc0"}], "title": "zram: fix use-after-free in zram_bvec_write_partial()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: zram: fix use-after-free in zram_bvec_write_partial()", "id": "2492735", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492735"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-364", "details": ["A flaw was found in the Linux kernel, specifically within the zram module. This vulnerability is a use-after-free error, where the system attempts to use a piece of memory after it has been freed. This occurs when the `zram_bvec_write_partial()` function allows an asynchronous read to write into a page that has already been deallocated. Such a flaw can lead to system instability, causing crashes, or in some scenarios, could be exploited by a local attacker to escalate privileges or execute arbitrary code."], "name": "CVE-2026-53185", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53185\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53185\nhttps://lore.kernel.org/linux-cve-announce/2026062556-CVE-2026-53185-0922@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8e654f8fbff52ac483fb69957222853d7e2fc588,0c2821665ff71be3f4b07ecece384669f2877f6a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8e654f8fbff52ac483fb69957222853d7e2fc588,77a602b505ce4802915853cfc435a4722fab3e64)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8e654f8fbff52ac483fb69957222853d7e2fc588,c96786d6ff1acc1d54d9241e97767554c1dfdd5b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8e654f8fbff52ac483fb69957222853d7e2fc588,198b5a14cca27263b9c14b20114c8092de15dfcb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8e654f8fbff52ac483fb69957222853d7e2fc588,732fd9f0b9c1cdc6dfd77162ded60df005182cc0)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.143,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.94,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.36,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.13,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-25T12:15:03.847098+00:00", "updated": "2026-06-28T15:00:12.183514+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}