CVE-2026-46089
mediumpriority · track · 22EPSS 0.002 · 5 %ileDEEURUUSEPSS · scored 2026-10-24
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().
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (46)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux 7 Extended Lifecycle Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:7_extended_lifecycle_support
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1700Linux Kernel: Mehrere SchwachstellenDeutsch2026-05-27csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder andere nicht näher spezifizierte Auswirkungen zu erzielen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975cnnvd
- https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5dfcnnvd
- https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194cnnvd
- https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85cnnvd
- https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975enisa_euvd
- https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5dfenisa_euvd
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