Hello, syzbot found the following issue on: HEAD commit: f8dba31b0a82 Merge tag 'asym-keys-fix-for-linus-v6.4-rc5' .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11aa7b15280000 kernel config: https://syzkaller.appspot.com/x/.config?x=ee975febba574924 dashboard link: https://syzkaller.appspot.com/bug?extid=c563a3c79927971f950f 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=173fab79280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10b4622d280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/4a6b265f7061/disk-f8dba31b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/430b37c501c8/vmlinux-f8dba31b.xz kernel image: https://storage.googleapis.com/syzbot-assets/112fa4e51bb8/bzImage-f8dba31b.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/11e3e386cf39/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c563a3c79927971f950f@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff888109b51580 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 19.050s) hex dump (first 32 bytes): 00 10 10 00 00 00 00 00 00 10 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51500 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 19.050s) hex dump (first 32 bytes): 00 30 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .0P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51480 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 19.050s) hex dump (first 32 bytes): 00 60 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .`P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51580 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 20.200s) hex dump (first 32 bytes): 00 10 10 00 00 00 00 00 00 10 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51500 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 20.200s) hex dump (first 32 bytes): 00 30 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .0P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51480 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 20.200s) hex dump (first 32 bytes): 00 60 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .`P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51580 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 22.400s) hex dump (first 32 bytes): 00 10 10 00 00 00 00 00 00 10 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51500 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 22.400s) hex dump (first 32 bytes): 00 30 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .0P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51480 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 22.400s) hex dump (first 32 bytes): 00 60 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .`P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51580 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 22.440s) hex dump (first 32 bytes): 00 10 10 00 00 00 00 00 00 10 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51500 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 22.440s) hex dump (first 32 bytes): 00 30 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .0P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 BUG: memory leak unreferenced object 0xffff888109b51480 (size 96): comm "syz-executor154", pid 5193, jiffies 4294972644 (age 22.440s) hex dump (first 32 bytes): 00 60 50 00 00 00 00 00 00 10 00 00 00 00 00 00 .`P............. 01 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 ................ backtrace: [<ffffffff81545a34>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff8213b65e>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff8213b65e>] kzalloc include/linux/slab.h:680 [inline] [<ffffffff8213b65e>] add_block_entry+0x4e/0x320 fs/btrfs/ref-verify.c:271 [<ffffffff8213bcfe>] add_tree_block+0x9e/0x220 fs/btrfs/ref-verify.c:332 [<ffffffff8213d245>] btrfs_build_ref_tree+0x535/0x7c0 fs/btrfs/ref-verify.c:474 [<ffffffff8202b2f1>] open_ctree+0x12d1/0x2360 fs/btrfs/disk-io.c:3710 [<ffffffff81ff2e53>] btrfs_fill_super fs/btrfs/super.c:1156 [inline] [<ffffffff81ff2e53>] btrfs_mount_root+0x583/0x710 fs/btrfs/super.c:1524 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff81698e91>] fc_mount fs/namespace.c:1035 [inline] [<ffffffff81698e91>] vfs_kern_mount.part.0+0xd1/0x120 fs/namespace.c:1065 [<ffffffff81698f20>] vfs_kern_mount+0x40/0x60 fs/namespace.c:1052 [<ffffffff81ff6e8d>] btrfs_mount+0x19d/0x620 fs/btrfs/super.c:1584 [<ffffffff816c406f>] legacy_get_tree+0x2f/0x90 fs/fs_context.c:610 [<ffffffff8165d7ac>] vfs_get_tree+0x2c/0x110 fs/super.c:1510 [<ffffffff816a0ac3>] do_new_mount fs/namespace.c:3039 [inline] [<ffffffff816a0ac3>] path_mount+0xc53/0x10f0 fs/namespace.c:3369 [<ffffffff816a1702>] do_mount fs/namespace.c:3382 [inline] [<ffffffff816a1702>] __do_sys_mount fs/namespace.c:3591 [inline] [<ffffffff816a1702>] __se_sys_mount fs/namespace.c:3568 [inline] [<ffffffff816a1702>] __x64_sys_mount+0x192/0x1e0 fs/namespace.c:3568 [<ffffffff84a16749>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a16749>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 executing program executing program executing program --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
