Описание
Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP5)
This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.136 fixes one security issue
The following security issue was fixed:
- CVE-2025-21738: ata: libata-sff: ensure that we cannot write outside the allocated buffer (bsc#1257118).
Список пакетов
SUSE Linux Enterprise Live Patching 15 SP5
Ссылки
- Link for SUSE-SU-2026:1060-1
- E-Mail link for SUSE-SU-2026:1060-1
- SUSE Security Ratings
- SUSE Bug 1257118
- SUSE CVE CVE-2025-21738 page
Описание
In the Linux kernel, the following vulnerability has been resolved: ata: libata-sff: Ensure that we cannot write outside the allocated buffer reveliofuzzing reported that a SCSI_IOCTL_SEND_COMMAND ioctl with out_len set to 0xd42, SCSI command set to ATA_16 PASS-THROUGH, ATA command set to ATA_NOP, and protocol set to ATA_PROT_PIO, can cause ata_pio_sector() to write outside the allocated buffer, overwriting random memory. While a ATA device is supposed to abort a ATA_NOP command, there does seem to be a bug either in libata-sff or QEMU, where either this status is not set, or the status is cleared before read by ata_sff_hsm_move(). Anyway, that is most likely a separate bug. Looking at __atapi_pio_bytes(), it already has a safety check to ensure that __atapi_pio_bytes() cannot write outside the allocated buffer. Add a similar check to ata_pio_sector(), such that also ata_pio_sector() cannot write outside the allocated buffer.
Затронутые продукты
Ссылки
- CVE-2025-21738
- SUSE Bug 1238917
- SUSE Bug 1257118