On Tue, Apr 08, 2025 at 12:16:47PM +0800, Li Zhijian wrote:
> The kmemleak reported that
> ...
> unreferenced object 0xffff888108d6c300 (size 256):
> comm "cryptomgr_test", pid 183, jiffies 4294700957
> hex dump (first 32 bytes):
> 00 c1 d6 08 81 88 ff ff 00 cb d6 08 81 88 ff ff ................
> 50 cd a7 81 ff ff ff ff b8 fb 93 02 00 c9 ff ff P...............
> backtrace (crc 29cca632):
> __kmalloc_noprof+0x2fa/0x430
> test_acomp+0x174/0x960
> alg_test_comp+0x6f/0x90
> alg_test.part.26+0x105/0x410
> cryptomgr_test+0x20/0x40
> kthread+0x10c/0x250
> ret_from_fork+0x30/0x40
> ret_from_fork_asm+0x1a/0x30
> unreferenced object 0xffff888108d6c100 (size 256):
> comm "cryptomgr_test", pid 183, jiffies 4294700972
> hex dump (first 32 bytes):
> 00 1d da 08 81 88 ff ff 00 c3 d6 08 81 88 ff ff ................
> 50 cd a7 81 ff ff ff ff b8 fb 93 02 00 c9 ff ff P...............
> backtrace (crc 3047d62b):
> __kmalloc_noprof+0x2fa/0x430
> test_acomp+0x174/0x960
> alg_test_comp+0x6f/0x90
> alg_test.part.26+0x105/0x410
> cryptomgr_test+0x20/0x40
> kthread+0x10c/0x250
> ret_from_fork+0x30/0x40
> ret_from_fork_asm+0x1a/0x30
>
> acomp_request will be chained to req[0], however,
> acomp_request_free(), it will not free the whole chain.
>
> Fix it by freeing them one by one.
>
> Fixes: 99585c2192cb ("crypto: testmgr - Add multibuffer acomp testing")
> Reported-by: Erhard Furtner <erhard_f@xxxxxxxxxxx>
> Closes: https://lore.kernel.org/linux-crypto/20250408002741.089f1e9a@xxxxxxxxxxxxx/
> Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx>
> ---
> crypto/testmgr.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks for the patch but this will be removed by
https://patchwork.kernel.org/project/linux-crypto/patch/048b1e176dd3507ec31497ccf215630dc2b2ed04.1744018301.git.herbert@xxxxxxxxxxxxxxxxxxx/
Cheers,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
