Opened 5 years ago

Closed 5 years ago

Last modified 5 years ago

#15175 closed bug (fixed)

SMEP violation in /dev/mem

Reported by: diver Owned by: nobody
Priority: normal Milestone: R1/beta2
Component: System Version: R1/Development
Keywords: Cc:
Blocked By: Blocking:
Platform: All

Description

hrev53233 x86_64.

Running strings /dev/mem crashes Haiku.

Attachments (1)

smep.png​ (38.7 KB ) - added by diver 5 years ago.

Download all attachments as: .zip

Change History (5)

by diver, 5 years ago

Attachment: smep.png​ added

comment:1 by waddlesplash, 5 years ago

​https://xref.plausible.coop/source/xref/haiku/src/system/kernel/fs/fd.cpp#510

There is already a NULL check here. So how is it *calling* (SMEP) a NULL pointer?

/dev/mem's control is indeed NULL though: ​https://xref.plausible.coop/source/xref/haiku/src/add-ons/kernel/drivers/misc/mem.c#41

comment:3 by waddlesplash, 5 years ago

Resolution: → fixed
Status: new → closed

Fixed in hrev53481~2.

comment:4 by nielx, 5 years ago

Milestone: Unscheduled → R1/beta2

Assign tickets with status=closed and resolution=fixed within the R1/beta2 development window to the R1/beta2 Milestone

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