{"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": "2026-06-25T08:38:58.853Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-25T08:38:58.853Z"}, "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."}], "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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