CVE-2026-46089
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-27
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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().
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 0120dd6e4e202e19a0e011e486fb2da40a5ea279 < 2d1f18efccdb8b29552399d024c36b705447e975 |
| Linux | Linux | 0120dd6e4e202e19a0e011e486fb2da40a5ea279 < 35d3300f6357cfaa72db2721dc2b345b19bac5df |
| Linux | Linux | 0120dd6e4e202e19a0e011e486fb2da40a5ea279 < a02363f71a79b755daa78a70d6b217f9c13c8c85 |
| Linux | Linux | 0120dd6e4e202e19a0e011e486fb2da40a5ea279 < 68ce397e8236088fc53b9532d383a722288c8194 |
| Linux | Linux | 0120dd6e4e202e19a0e011e486fb2da40a5ea279 < e3668b371329ea036ff022ce8ecc82f8befcf003 |
| Linux | Linux | 6.4 |
| linux | linux_kernel | 6.4 – 6.6.140 |