===================================================== BUG: KMSAN: uninit-value in af_alg_free_sg crypto/af_alg.c:545 [inline] BUG: KMSAN: uninit-value in af_alg_free_areq_sgls crypto/af_alg.c:778 [inline] BUG: KMSAN: uninit-value in af_alg_free_resources+0x3d1/0xf60 crypto/af_alg.c:1117 af_alg_free_sg crypto/af_alg.c:545 [inline] af_alg_free_areq_sgls crypto/af_alg.c:778 [inline] af_alg_free_resources+0x3d1/0xf60 crypto/af_alg.c:1117 _skcipher_recvmsg crypto/algif_skcipher.c:144 [inline] skcipher_recvmsg+0x6a0/0x1a20 crypto/algif_skcipher.c:157 sock_recvmsg_nosec net/socket.c:1020 [inline] sock_recvmsg net/socket.c:1041 [inline] __sys_recvfrom+0x505/0x810 net/socket.c:2186 __do_sys_recvfrom net/socket.c:2204 [inline] __se_sys_recvfrom net/socket.c:2200 [inline] __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Uninit was created at: slab_post_alloc_hook+0x12f/0xb70 mm/slab.h:767 slab_alloc_node mm/slub.c:3470 [inline] __kmem_cache_alloc_node+0x536/0x8d0 mm/slub.c:3509 __do_kmalloc_node mm/slab_common.c:984 [inline] __kmalloc+0x121/0x3c0 mm/slab_common.c:998 kmalloc include/linux/slab.h:586 [inline] sock_kmalloc+0x128/0x1c0 net/core/sock.c:2694 af_alg_alloc_areq+0x41/0x2a0 crypto/af_alg.c:1188 _skcipher_recvmsg crypto/algif_skcipher.c:71 [inline] skcipher_recvmsg+0x514/0x1a20 crypto/algif_skcipher.c:157 sock_recvmsg_nosec net/socket.c:1020 [inline] sock_recvmsg net/socket.c:1041 [inline] __sys_recvfrom+0x505/0x810 net/socket.c:2186 __do_sys_recvfrom net/socket.c:2204 [inline] __se_sys_recvfrom net/socket.c:2200 [inline] __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd CPU: 0 PID: 12843 Comm: syz-executor.4 Tainted: G W 6.5.0-rc6-syzkaller-00027-g91aa6c412d7f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 =====================================================