CVE-2026-89458
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
s390/dasd: Do not complete a failed ESE read as successful
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasd_int_handler() completes an NRF read of an unallocated ESE track by calling ese_read() and unconditionally marking the request DASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has zeroed the destination buffer: a failed sense-data parse or a current track outside the requested range both return early, leaving the destination pages untouched. The request is still completed successfully, so the block layer is handed stale / uninitialized memory instead of zeros. Check the ese_read() return value and fail the request through the normal error path instead of forcing DASD_CQR_SUCCESS.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | 8cb96cffceead3cbd0541154d7ecc5e6474edda1 | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | 77168af195d04b34c6de62b874624e74d64cef8d | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | 921ff697bb6f7067059793becf8b2d00de71ce41 | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | 55f4df40178cdfede0d7ae848fbab00efa9b95c1 | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | c9adf8399732306dfc97b3adb4778038743e3f5e | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | 52b331c99baac653ca794bd8487c8ec4de8db203 | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f | Unavailable | None listed |
| 5e6bdd37c5526ef01326df5dabb93011ee89237e | affected | git | cddb447c62466f3076938ce120028d7b591f9f37 | Unavailable | None listed |
| fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04 | affected | git | Unavailable | Unavailable | None listed |
| 5f7c9989f11305aaa43e0f4378f4f070022a9f2b | affected | git | Unavailable | Unavailable | None listed |
| 5.4.26 | affected | semver | 5.5 | Unavailable | None listed |
| 5.5.10 | affected | semver | 5.6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.6 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |