{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46089","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.096Z","datePublished":"2026-05-27T12:58:32.606Z","dateUpdated":"2026-06-14T17:53:34.164Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-14T17:53:34.164Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nzram: do not forget to endio for partial discard requests\n\nAs reported by Qu Wenruo and Avinesh Kumar, the following\n\n getconf PAGESIZE\n 65536\n blkdiscard -p 4k /dev/zram0\n\ntakes literally forever to complete.  zram doesn't support partial\ndiscards and just returns immediately w/o doing any discard work in such\ncases.  The problem is that we forget to endio on our way out, so\nblkdiscard sleeps forever in submit_bio_wait().  Fix this by jumping to\nend_bio label, which does bio_endio()."}],"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":"0120dd6e4e202e19a0e011e486fb2da40a5ea279","lessThan":"2d1f18efccdb8b29552399d024c36b705447e975","status":"affected","versionType":"git"},{"version":"0120dd6e4e202e19a0e011e486fb2da40a5ea279","lessThan":"35d3300f6357cfaa72db2721dc2b345b19bac5df","status":"affected","versionType":"git"},{"version":"0120dd6e4e202e19a0e011e486fb2da40a5ea279","lessThan":"a02363f71a79b755daa78a70d6b217f9c13c8c85","status":"affected","versionType":"git"},{"version":"0120dd6e4e202e19a0e011e486fb2da40a5ea279","lessThan":"68ce397e8236088fc53b9532d383a722288c8194","status":"affected","versionType":"git"},{"version":"0120dd6e4e202e19a0e011e486fb2da40a5ea279","lessThan":"e3668b371329ea036ff022ce8ecc82f8befcf003","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":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","status":"unaffected","versionType":"semver"},{"version":"6.6.140","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.86","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.27","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.4","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":"6.4","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975"},{"url":"https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5df"},{"url":"https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85"},{"url":"https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194"},{"url":"https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003"}],"title":"zram: do not forget to endio for partial discard requests","x_generator":{"engine":"bippy-1.2.0"}}}}