Catcrafts/milos-linux
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()

Browse source 
aie2_populate_range() jumps back to the again label without calling
mmput(mm), leaking a reference to the mm_struct.

Add the missing mmput() before jumping to again.

Fixes: e486147c91 ("accel/amdxdna: Add BO import and export")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260610151127.2994185-1-lizhi.hou@amd.com
This commit is contained in:
Lizhi Hou 2026-06-10 08:11:27 -07:00
commit 2f41af638c
1 changed files with 3 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/accel/amdxdna/aie2_ctx.c
View file

@ -999,6 +999,7 @@ again:
if (ret == -EBUSY) {
amdxdna_umap_put(mapp);
mmput(mm);
goto again;
}
@ -1009,11 +1010,13 @@ again:
if (mmu_interval_read_retry(&mapp->notifier, mapp->range.notifier_seq)) {
up_write(&xdna->notifier_lock);
amdxdna_umap_put(mapp);
mmput(mm);
goto again;
}
mapp->invalid = false;
up_write(&xdna->notifier_lock);
amdxdna_umap_put(mapp);
mmput(mm);
goto again;
put_mm: