Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4d4df1932b6b116aecc81039066fec27f2050762 before f8fc5cc6b3284506c6ab83c822c48133377668bb; affected 4d4df1932b6b116aecc81039066fec27f2050762 before f29695b1138ae2539c5cd6cdaba9b1b072aaa81a; affected 4d4df1932b6b116aecc81039066fec27f2050762 before 13d645a2cdb224d27205368f3e3c68bb160daf97; affected 4d4df1932b6b116aecc81039066fec27f2050762 before 2f847f06bb223aa895eea91fc9e5e2d6314038eb; affected 4d4df1932b6b116aecc81039066fec27f2050762 before 1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79; affected 4d4df1932b6b116aecc81039066fec27f2050762 before e6cfb1ee18336aab41a0941d6d3ea5009aaafc05; affected 4d4df1932b6b116aecc81039066fec27f2050762 before 9f31de4d07e4cde91dfc24522993a5fbb4d67083; affected 4d4df1932b6b116aecc81039066fec27f2050762 before 9efaa782845b4d5fb3e01242be0d06ebc7428d8f |
| Linux / Linux | affected 2.6.26; unaffected 0 before 2.6.26; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.51 through 6.18.*; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f8fc5cc6b3284506c6ab83c822c48133377668bb
- https://git.kernel.org/stable/c/f29695b1138ae2539c5cd6cdaba9b1b072aaa81a
- https://git.kernel.org/stable/c/13d645a2cdb224d27205368f3e3c68bb160daf97
- https://git.kernel.org/stable/c/2f847f06bb223aa895eea91fc9e5e2d6314038eb
- https://git.kernel.org/stable/c/1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79
- https://git.kernel.org/stable/c/e6cfb1ee18336aab41a0941d6d3ea5009aaafc05
- https://git.kernel.org/stable/c/9f31de4d07e4cde91dfc24522993a5fbb4d67083
- https://git.kernel.org/stable/c/9efaa782845b4d5fb3e01242be0d06ebc7428d8f