{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89716","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.751Z","datePublished":"2026-09-11T19:46:29.953Z","dateUpdated":"2026-09-11T19:46:29.953Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-11T19:46:29.953Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nzram: validate deflate params\n\nWe must validate user-supplied deflate winbits before we pass it to\nzlib_deflate_workspacesize(), which triggers BUG_ON() if winbits value is\noutside of valid ranges."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/block/zram/backend_deflate.c"],"versions":[{"version":"dc75a0d93bd5a1c64104efb4ec680463afbdd755","lessThan":"923578d0f0d0703c3db61ab35dc37075ae53b0bd","status":"affected","versionType":"git"},{"version":"dc75a0d93bd5a1c64104efb4ec680463afbdd755","lessThan":"e23fac4ab2a5728386477b98a402a1042b21bffb","status":"affected","versionType":"git"},{"version":"dc75a0d93bd5a1c64104efb4ec680463afbdd755","lessThan":"ec7607ac4717ff521c9c1e9d8271c26293345513","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/backend_deflate.c"],"versions":[{"version":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.18.50","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.4","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.16","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/923578d0f0d0703c3db61ab35dc37075ae53b0bd"},{"url":"https://git.kernel.org/stable/c/e23fac4ab2a5728386477b98a402a1042b21bffb"},{"url":"https://git.kernel.org/stable/c/ec7607ac4717ff521c9c1e9d8271c26293345513"}],"title":"zram: validate deflate params","x_generator":{"engine":"bippy-1.2.0"}}}}