CVE-2026-46089
Published: May 27, 2026
Modified: May 27, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: zram: do not forget to endio for partial discard requests As reported by Qu Wenruo and Avinesh Kumar, the following getconf PAGESIZE 65536 blkdiscard -p 4k /dev/zram0 takes literally forever to complete. zram doesn't support partial discards and just returns immediately w/o doing any discard work in such cases. The problem is that we forget to endio on our way out, so blkdiscard sleeps forever in submit_bio_wait(). Fix this by jumping to end_bio label, which does bio_endio().
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 0120dd6e4e202e19a0e011e486fb2da40a5ea279 - < 2d1f18efccdb8b29552399d024c36b705447e975affected 0120dd6e4e202e19a0e011e486fb2da40a5ea279 - < 35d3300f6357cfaa72db2721dc2b345b19bac5dfaffected 0120dd6e4e202e19a0e011e486fb2da40a5ea279 - < a02363f71a79b755daa78a70d6b217f9c13c8c85affected 0120dd6e4e202e19a0e011e486fb2da40a5ea279 - < 68ce397e8236088fc53b9532d383a722288c8194affected 0120dd6e4e202e19a0e011e486fb2da40a5ea279 - < e3668b371329ea036ff022ce8ecc82f8befcf003 |
Linux | Linux | affected 6.4unaffected 0 - < 6.4unaffected 6.6.140 - <= 6.6.*unaffected 6.12.86 - <= 6.12.*unaffected 6.18.27 - <= 6.18.*+2 more versions |
References
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