github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

- Fix uninitialized stack variable in rseq_exit_user_update()

Browse Source 
(Qing Wang)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmok+EARHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1jeMQ/9FaW8MLhxkd3r8ZULiAiYkF8j0/NZOSe1
 EK+oBQm7SiBySiEngvrytAH3fZt3+lRpkxrP38n8BeFviaAbgSGvorVjg2Ac/LAb
 M42YLmtjNgOkPT/hrNtbWdKLBoqM7phBFtN9zLkVjDascNbLc2odBq25FhTKWhET
 7hXXOf+Gv23kD4kWWh9S6VYbenOpIMPgwvcdyXK/bKRLLqplc7ZDoiahn1QpVAYg
 KTGeAAovuryKlxFTq3+FFjP8NXy2Ex8isu2K3tYylHRpHG6SSBTp5yGZV/886GIR
 rz46ojcbfOADCGOsEn2xaymmB7+NScXjYyvrzfnrE41WlenNYNVkEK6h2wvmHtn/
 djUyUOJ+g+W4cyuZcf4lFZuq/0xO80Fll9ykmKvcEi7s0mpxEtngQ+V0kFNSj7XX
 N1lrd5LqIMxME1pkfWSc5m+RHsb33d1PDfpZkIxf107HGKhMWsF42t+c7yvk22HS
 4jhdzUOKFL2ko3eyoFn6NCQvojI3YVmkVjUKrP+GBHSfMZV8g46i+sp9ux6erRG3
 PkodV6tAcfaiLXLB0E3R5b0aes9LfZHGaAD6PtZ51Ujib95tr3Y1gvRpMmsJ1for
 GcJRIdcYE4U9/5vof69bkeNIfVQyCY3rM0rg7ALjOmjXSDBo5Ksi96pcYW2nqGyt
 mBUbd/yK69M=
 =AbXB
 -----END PGP SIGNATURE-----

Merge tag 'sched-urgent-2026-06-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull rseq fix from Ingo Molnar:

 - Fix uninitialized stack variable in rseq_exit_user_update() (Qing
   Wang)

* tag 'sched-urgent-2026-06-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rseq: Fix using an uninitialized stack variable in rseq_exit_user_update()
This commit is contained in:
Linus Torvalds 2026-06-07 12:54:37 -07:00
commit 77e8e6861b
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/rseq_entry.h
View File

@ -635,10 +635,11 @@ static __always_inline bool rseq_exit_user_update(struct pt_regs *regs, struct t
return true;
}
int cpu = task_cpu(t);
struct rseq_ids ids = {
.cpu_id = task_cpu(t),
.cpu_id = cpu,
.mm_cid = task_mm_cid(t),
.node_id = cpu_to_node(ids.cpu_id),
.node_id = cpu_to_node(cpu),
};
return rseq_update_usr(t, regs, &ids);