zram: validate deflate params
Summary
| CVE | CVE-2026-89716 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-11 20:19:59 UTC |
| Updated | 2026-09-11 20:19:59 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlib_deflate_workspacesize(), which triggers BUG_ON() if winbits value is outside of valid ranges. |
Risk And Classification
EPSS: 0.001980000 probability, percentile 0.096910000 (date 2026-09-14)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected dc75a0d93bd5a1c64104efb4ec680463afbdd755 923578d0f0d0703c3db61ab35dc37075ae53b0bd git | Not specified |
| CNA | Linux | Linux | affected dc75a0d93bd5a1c64104efb4ec680463afbdd755 e23fac4ab2a5728386477b98a402a1042b21bffb git | Not specified |
| CNA | Linux | Linux | affected dc75a0d93bd5a1c64104efb4ec680463afbdd755 ec7607ac4717ff521c9c1e9d8271c26293345513 git | Not specified |
| CNA | Linux | Linux | affected 6.16 | Not specified |
| CNA | Linux | Linux | unaffected 6.16 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.50 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.4 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/ec7607ac4717ff521c9c1e9d8271c26293345513 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e23fac4ab2a5728386477b98a402a1042b21bffb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/923578d0f0d0703c3db61ab35dc37075ae53b0bd | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.