Messages in this thread Patch in this message | | | Date | Fri, 19 Jun 2020 16:46:01 -0000 | From | "tip-bot2 for Qiushi Wu" <> | Subject | [tip: efi/urgent] efi/esrt: Fix reference count leak in esre_create_sysfs_entry. |
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The following commit has been merged into the efi/urgent branch of tip:
Commit-ID: 4ddf4739be6e375116c375f0a68bf3893ffcee21 Gitweb: https://git.kernel.org/tip/4ddf4739be6e375116c375f0a68bf3893ffcee21 Author: Qiushi Wu <wu000273@umn.edu> AuthorDate: Thu, 28 May 2020 13:38:04 -05:00 Committer: Ard Biesheuvel <ardb@kernel.org> CommitterDate: Mon, 15 Jun 2020 14:38:56 +02:00
efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
kobject_init_and_add() takes reference even when it fails. If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Previous commit "b8eb718348b8" fixed a similar problem.
Fixes: 0bb549052d33 ("efi: Add esrt support") Signed-off-by: Qiushi Wu <wu000273@umn.edu> Link: https://lore.kernel.org/r/20200528183804.4497-1-wu000273@umn.edu Signed-off-by: Ard Biesheuvel <ardb@kernel.org> --- drivers/firmware/efi/esrt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/esrt.c b/drivers/firmware/efi/esrt.c index e3d6926..d591527 100644 --- a/drivers/firmware/efi/esrt.c +++ b/drivers/firmware/efi/esrt.c @@ -181,7 +181,7 @@ static int esre_create_sysfs_entry(void *esre, int entry_num) rc = kobject_init_and_add(&entry->kobj, &esre1_ktype, NULL, "entry%d", entry_num); if (rc) { - kfree(entry); + kobject_put(&entry->kobj); return rc; } }
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