executing program executing program executing program executing program BUG: memory leak unreferenced object 0xffff88810e604800 (size 2048): comm "syz-executor388", pid 3719, jiffies 4294951967 (age 23.760s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace: [] kmalloc include/linux/slab.h:605 [inline] [] sk_prot_alloc+0xcd/0x1b0 net/core/sock.c:1976 [] sk_alloc+0x32/0x2e0 net/core/sock.c:2029 [] tun_chr_open+0x36/0x170 drivers/net/tun.c:3419 [] misc_open+0x19f/0x1f0 drivers/char/misc.c:143 [] chrdev_open+0x10d/0x340 fs/char_dev.c:414 [] do_dentry_open+0x1e6/0x750 fs/open.c:878 [] do_open fs/namei.c:3557 [inline] [] path_openat+0x1756/0x1be0 fs/namei.c:3691 [] do_filp_open+0xc1/0x1b0 fs/namei.c:3718 [] do_sys_openat2+0xed/0x260 fs/open.c:1311 [] do_sys_open fs/open.c:1327 [inline] [] __do_sys_openat fs/open.c:1343 [inline] [] __se_sys_openat fs/open.c:1338 [inline] [] __x64_sys_openat+0x7f/0xe0 fs/open.c:1338 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810e607840 (size 32): comm "syz-executor388", pid 3719, jiffies 4294951967 (age 23.760s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 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 include/linux/slab.h:600 [inline] [] kzalloc include/linux/slab.h:733 [inline] [] apparmor_sk_alloc_security+0x53/0xd0 security/apparmor/lsm.c:812 [] security_sk_alloc+0x31/0x70 security/security.c:2279 [] sk_prot_alloc+0xe8/0x1b0 net/core/sock.c:1979 [] sk_alloc+0x32/0x2e0 net/core/sock.c:2029 [] tun_chr_open+0x36/0x170 drivers/net/tun.c:3419 [] misc_open+0x19f/0x1f0 drivers/char/misc.c:143 [] chrdev_open+0x10d/0x340 fs/char_dev.c:414 [] do_dentry_open+0x1e6/0x750 fs/open.c:878 [] do_open fs/namei.c:3557 [inline] [] path_openat+0x1756/0x1be0 fs/namei.c:3691 [] do_filp_open+0xc1/0x1b0 fs/namei.c:3718 [] do_sys_openat2+0xed/0x260 fs/open.c:1311 [] do_sys_open fs/open.c:1327 [inline] [] __do_sys_openat fs/open.c:1343 [inline] [] __se_sys_openat fs/open.c:1338 [inline] [] __x64_sys_openat+0x7f/0xe0 fs/open.c:1338 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810e21f600 (size 240): comm "syz-executor388", pid 3719, jiffies 4294951968 (age 23.750s) hex dump (first 32 bytes): 68 49 60 0e 81 88 ff ff 68 49 60 0e 81 88 ff ff hI`.....hI`..... 00 40 ea 0a 81 88 ff ff 00 48 60 0e 81 88 ff ff .@.......H`..... backtrace: [] __alloc_skb+0x1f9/0x270 net/core/skbuff.c:418 [] alloc_skb include/linux/skbuff.h:1257 [inline] [] alloc_skb_with_frags+0x6a/0x340 net/core/skbuff.c:6017 [] sock_alloc_send_pskb+0x39f/0x3d0 net/core/sock.c:2665 [] tun_alloc_skb drivers/net/tun.c:1520 [inline] [] tun_get_user+0x577/0x1df0 drivers/net/tun.c:1833 [] tun_chr_write_iter+0x6d/0x110 drivers/net/tun.c:2025 [] call_write_iter include/linux/fs.h:2187 [inline] [] new_sync_write fs/read_write.c:491 [inline] [] vfs_write+0x42d/0x540 fs/read_write.c:578 [] ksys_write+0x9d/0x160 fs/read_write.c:631 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd