Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-46089

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().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 6.3%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2026-46089


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