Threats Tagged 'cve-2026-46089'
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Threats Tagged 'cve-2026-46089'
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A vulnerability in the Linux kernel's zram module causes the blkdiscard command to hang indefinitely when issuing partial discard requests. This occurs because zram does not support partial discards and fails to properly complete the I/O operation, leading to a hang in submit_bio_wait(). The issue has been fixed by ensuring bio_endio() is called to end the I/O operation correctly. Join the discussion | GCVE Database | 05/27/2026, 15:33:23 UTC Added: 05/28/2026, 20:54:30 UTC |
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(). Join the discussion | GCVE Database | 05/27/2026, 14:17:00 UTC Added: 07/17/2026, 10:21:02 UTC |
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