Files
mirror_zfs/module
Tony Hutter aa62ae87dd Fix 'kernel BUG at mm/usercopy.c'
Fix a bug where an cgroup-OOM-killed process can cause a panic:

usercopy: Kernel memory exposure attempt detected from vmalloc (offset
1007584, size 217120)!
kernel BUG at mm/usercopy.c:102!

This was caused by zfs_uiomove() not correctly returning EFAULT
for short copies.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15918
Closes #18408
2026-04-27 10:57:52 -07:00
..
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