CVE-2026-46089
- Source
- https://cve.org/CVERecord?id=CVE-2026-46089
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46089.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-46089
- Downstream
- Related
- Published
- 2026-05-27T12:58:32Z
- Modified
- 2026-08-27T18:27:28Z
- Summary
- zram: do not forget to endio for partial discard requests
- Details
-
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().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46089.json" }- References
-
- https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975
- https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5df
- https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194
- https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85
- https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46089.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-46089
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0120dd6e4e202e19a0e011e486fb2da40a5ea279Fixed2d1f18efccdb8b29552399d024c36b705447e975Fixed35d3300f6357cfaa72db2721dc2b345b19bac5dfFixeda02363f71a79b755daa78a70d6b217f9c13c8c85Fixed68ce397e8236088fc53b9532d383a722288c8194Fixede3668b371329ea036ff022ce8ecc82f8befcf003