CVE-2026-89852

CVE CVE-2026-89852EUVD EUVD-2026-80452Published 2026-09-16T10:31:26.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state() The mbx_cmd_t is allocated on the stack but left uninitialized. qla2x00_mailbox_command() has several early-return paths (PCI permanent failure, device failed, EEH busy, ISP abort pending, mailbox access timeout, purge mbox) that return without writing the input mailbox registers back into mcp->mb[]. qla2x00_get_firmware_state() then unconditionally copies mcp->mb[1..6] (and mb[12]) into the caller's states[] array regardless of the return value. On such a failure the copied values are uninitialized kernel stack memory, which is then exposed to userspace via the fw_state and mpi_fw_state sysfs handlers. Zero the mailbox struct so a failed query yields deterministic zeroed state instead of leaking stack contents.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 2.6.26; 4d4df1932b6b116aecc81039066fec27f2050762 <9efaa782845b4d5fb3e01242be0d06ebc7428d8f; patch: 6.1.188; patch: 7.2.5; 4d4df1932b6b116aecc81039066fec27f2050762 <2f847f06bb223aa895eea91fc9e5e2d6314038eb; patch: 5.15.221; 4d4df1932b6b116aecc81039066fec27f2050762 <13d645a2cdb224d27205368f3e3c68bb160daf97; patch: 6.6.157; 4d4df1932b6b116aecc81039066fec27f2050762 <1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79; 4d4df1932b6b116aecc81039066fec27f2050762 <9f31de4d07e4cde91dfc24522993a5fbb4d67083; patch: 7.3-rc1; patch: 5.10.270; 4d4df1932b6b116aecc81039066fec27f2050762 <e6cfb1ee18336aab41a0941d6d3ea5009aaafc05; 4d4df1932b6b116aecc81039066fec27f2050762 <f8fc5cc6b3284506c6ab83c822c48133377668bb; 4d4df1932b6b116aecc81039066fec27f2050762 <f29695b1138ae2539c5cd6cdaba9b1b072aaa81a; patch: 6.12.110; patch: 0; patch: 6.18.51

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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