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authorLinus Torvalds <torvalds@linux-foundation.org>2024-09-30 11:06:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-09-30 11:06:01 -0700
commit190ecde722dd0531d087a9964537560aa35c769b (patch)
treeaf46e0f4b847913522536b07d78a62f59ddddeff /kernel
parenta5f24c795513ff098dc8e350e5733aec8796fbf8 (diff)
parent34820304cc2cd1804ee1f8f3504ec77813d29c8e (diff)
downloadlwn-190ecde722dd0531d087a9964537560aa35c769b.tar.gz
lwn-190ecde722dd0531d087a9964537560aa35c769b.zip
Merge tag 'probes-fixes-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fix from Masami Hiramatsu: - uprobes: fix kernel info leak via "[uprobes]" vma Fix uprobes not to expose the uninitialized page for trampoline buffer to user space, which can leak kernel info. * tag 'probes-fixes-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: uprobes: fix kernel info leak via "[uprobes]" vma
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/uprobes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 2ec796e2f055..4b52cb2ae6d6 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1545,7 +1545,7 @@ static struct xol_area *__create_xol_area(unsigned long vaddr)
if (!area->bitmap)
goto free_area;
- area->page = alloc_page(GFP_HIGHUSER);
+ area->page = alloc_page(GFP_HIGHUSER | __GFP_ZERO);
if (!area->page)
goto free_bitmap;