Veille CVE
CVE-2026-89458
– Non évaluéeDescription
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.
Produits concernés
Références
- https://git.kernel.org/stable/c/52b331c99baac653ca794bd8487c8ec4de8db203
- https://git.kernel.org/stable/c/55f4df40178cdfede0d7ae848fbab00efa9b95c1
- https://git.kernel.org/stable/c/77168af195d04b34c6de62b874624e74d64cef8d
- https://git.kernel.org/stable/c/8cb96cffceead3cbd0541154d7ecc5e6474edda1
- https://git.kernel.org/stable/c/921ff697bb6f7067059793becf8b2d00de71ce41
- https://git.kernel.org/stable/c/b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f
- https://git.kernel.org/stable/c/c9adf8399732306dfc97b3adb4778038743e3f5e
- https://git.kernel.org/stable/c/cddb447c62466f3076938ce120028d7b591f9f37