From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Subject: [syzbot] [hams?] memory leak in nr_create (3) Date: Tue, 13 Jun 2023 12:24:10 -0700 Message-ID: <0000000000009612bc05fe07c73f@google.com> Mime-Version: 1.0 Return-path: List-Id: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, ralf@linux-mips.org, syzkaller-bugs@googlegroups.com Hello, syzbot found the following issue on: HEAD commit: 33f2b5785a2b Merge tag 'drm-fixes-2023-06-09' of git://ano.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=127f61b3280000 kernel config: https://syzkaller.appspot.com/x/.config?x=ee975febba574924 dashboard link: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=110a6ef1280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/33eb581c818f/disk-33f2b578.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0bcbec3a83cf/vmlinux-33f2b578.xz kernel image: https://storage.googleapis.com/syzbot-assets/0e577c2e8783/bzImage-33f2b578.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d327a1f3b12e1e206c16@syzkaller.appspotmail.com 2023/06/09 19:03:53 executed programs: 18 BUG: memory leak unreferenced object 0xffff888114e76800 (size 2048): comm "syz-executor.3", pid 5156, jiffies 4294942146 (age 20.470s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 06 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace: [] __do_kmalloc_node mm/slab_common.c:965 [inline] [] __kmalloc+0x4a/0x120 mm/slab_common.c:979 [] kmalloc include/linux/slab.h:563 [inline] [] sk_prot_alloc+0xcd/0x1b0 net/core/sock.c:2035 [] sk_alloc+0x36/0x300 net/core/sock.c:2088 [] nr_create+0x84/0x1c0 net/netrom/af_netrom.c:438 [] __sock_create+0x1de/0x300 net/socket.c:1547 [] sock_create net/socket.c:1598 [inline] [] __sys_socket_create net/socket.c:1635 [inline] [] __sys_socket_create net/socket.c:1620 [inline] [] __sys_socket+0xa2/0x190 net/socket.c:1663 [] __do_sys_socket net/socket.c:1676 [inline] [] __se_sys_socket net/socket.c:1674 [inline] [] __x64_sys_socket+0x1e/0x30 net/socket.c:1674 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff8881185accc0 (size 32): comm "syz-executor.3", pid 5156, jiffies 4294942146 (age 20.470s) hex dump (first 32 bytes): a8 d1 a3 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [] kmalloc include/linux/slab.h:559 [inline] [] kzalloc include/linux/slab.h:680 [inline] [] apparmor_sk_alloc_security+0x52/0xd0 security/apparmor/lsm.c:828 [] security_sk_alloc+0x35/0x70 security/security.c:4372 [] sk_prot_alloc+0xfe/0x1b0 net/core/sock.c:2038 [] sk_alloc+0x36/0x300 net/core/sock.c:2088 [] nr_create+0x84/0x1c0 net/netrom/af_netrom.c:438 [] __sock_create+0x1de/0x300 net/socket.c:1547 [] sock_create net/socket.c:1598 [inline] [] __sys_socket_create net/socket.c:1635 [inline] [] __sys_socket_create net/socket.c:1620 [inline] [] __sys_socket+0xa2/0x190 net/socket.c:1663 [] __do_sys_socket net/socket.c:1676 [inline] [] __se_sys_socket net/socket.c:1674 [inline] [] __x64_sys_socket+0x1e/0x30 net/socket.c:1674 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff888115867800 (size 2048): comm "syz-executor.0", pid 5159, jiffies 4294942269 (age 19.240s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 06 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace: [] __do_kmalloc_node mm/slab_common.c:965 [inline] [] __kmalloc+0x4a/0x120 mm/slab_common.c:979 [] kmalloc include/linux/slab.h:563 [inline] [] sk_prot_alloc+0xcd/0x1b0 net/core/sock.c:2035 [] sk_alloc+0x36/0x300 net/core/sock.c:2088 [] nr_create+0x84/0x1c0 net/netrom/af_netrom.c:438 [] __sock_create+0x1de/0x300 net/socket.c:1547 [] sock_create net/socket.c:1598 [inline] [] __sys_socket_create net/socket.c:1635 [inline] [] __sys_socket_create net/socket.c:1620 [inline] [] __sys_socket+0xa2/0x190 net/socket.c:1663 [] __do_sys_socket net/socket.c:1676 [inline] [] __se_sys_socket net/socket.c:1674 [inline] [] __x64_sys_socket+0x1e/0x30 net/socket.c:1674 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88811896cae0 (size 32): comm "syz-executor.0", pid 5159, jiffies 4294942269 (age 19.240s) hex dump (first 32 bytes): a8 d1 a3 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [] kmalloc include/linux/slab.h:559 [inline] [] kzalloc include/linux/slab.h:680 [inline] [] apparmor_sk_alloc_security+0x52/0xd0 security/apparmor/lsm.c:828 [] security_sk_alloc+0x35/0x70 security/security.c:4372 [] sk_prot_alloc+0xfe/0x1b0 net/core/sock.c:2038 [] sk_alloc+0x36/0x300 net/core/sock.c:2088 [] nr_create+0x84/0x1c0 net/netrom/af_netrom.c:438 [] __sock_create+0x1de/0x300 net/socket.c:1547 [] sock_create net/socket.c:1598 [inline] [] __sys_socket_create net/socket.c:1635 [inline] [] __sys_socket_create net/socket.c:1620 [inline] [] __sys_socket+0xa2/0x190 net/socket.c:1663 [] __do_sys_socket net/socket.c:1676 [inline] [] __se_sys_socket net/socket.c:1674 [inline] [] __x64_sys_socket+0x1e/0x30 net/socket.c:1674 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd --- This report is generated by a bot. 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