[withdrawn] kernel-taskstatsc-parse-fix-buffer-allocation-size.patch removed from -mm tree

Andrew Morton <[email protected]>
Newsgroups org.kernel.vger.mm-commits,org.kernel.vger.stable
Message-ID <[email protected]>
The quilt patch titled
     Subject: kernel/taskstats.c:parse(): fix buffer allocation size
has been removed from the -mm tree.  Its filename was
     kernel-taskstatsc-parse-fix-buffer-allocation-size.patch

This patch was dropped because it was withdrawn

------------------------------------------------------
From: Andrew Morton <[email protected]>
Subject: kernel/taskstats.c:parse(): fix buffer allocation size
Date: Tue Jul 21 04:30:41 PM PDT 2026

parse() is failing to allow for the nla_strscpy()'s null termination of
the cpumask string.  This can result in the cpumask string being
truncated.

This can result in an inappropriate -EINVAL failure or in reporting for an
incorrect span of CPUs.

Fixes: f9fd8914c1ac ("[PATCH] per-task delay accounting taskstats interface: control exit data through cpumasks")
Reported-by: Oleg Deomi <[email protected]>
Closes: https://lore.kernel.org/CAByWkfZ6b1=3H9pwkz-dDQOs9cZaF-HYQ6b9Yb0=Hq2r1Vv_Pw@mail.gmail.com
Cc: Balbir Singh <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 kernel/taskstats.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/taskstats.c~kernel-taskstatsc-parse-fix-buffer-allocation-size
+++ a/kernel/taskstats.c
@@ -368,7 +368,7 @@ static int parse(struct nlattr *na, stru
 		return -E2BIG;
 	if (len < 1)
 		return -EINVAL;
-	data = kmalloc(len, GFP_KERNEL);
+	data = kmalloc(len + 1, GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 	nla_strscpy(data, na, len);
_

Patches currently in -mm which might be from [email protected] are

mm-mincore-use-walk_page_range_vma-in-do_mincore-fix.patch
csky-implement-flush_cache_vmap-in-c.patch
mm-annotate-data-race-in-cpu_needs_drain-fix.patch
mm-zsmalloc-encode-class-index-in-obj-value-for-lockless-class-lookup-fix.patch
mm-zsmalloc-drop-pool-lock-from-zs_free-on-64-bit-systems-fix.patch
mm-zsmalloc-drop-pool-lock-from-zs_free-on-64-bit-systems-fix-fix.patch
mm-rmap-use-huge_ptep_get-in-try_to_migrate_one-checkpatch-fixes.patch
mm-mprotect-use-huge_ptep_get-for-hugetlb-fix.patch
mm-drop-stale-folio_ref_count==1-check-in-do_swap_page-reuse-logic-fix.patch
alloc_tag-add-ioctl-to-proc-allocinfo-fix.patch
mm-vma-add-and-use-vma__pgoff-fix.patch
drivers-media-v4l2-core-v4l2-vp9c-reduce-inlining.patch
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.