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().
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

25 Jun 2026, 21:15

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975 - () https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975 - Patch
References () https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5df - () https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5df - Patch
References () https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194 - () https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194 - Patch
References () https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85 - () https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85 - Patch
References () https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003 - () https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003 - Patch
CWE NVD-CWE-noinfo
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux

27 May 2026, 14:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-27 14:17

Updated : 2026-06-25 21:15


NVD link : CVE-2026-46089

Mitre link : CVE-2026-46089

CVE.ORG link : CVE-2026-46089


JSON object : View

Products Affected

linux

  • linux_kernel