------------[ cut here ]------------ WARNING: CPU: 1 PID: 5903 at kernel/cgroup/cgroup.c:1395 cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Modules linked in: CPU: 1 PID: 5903 Comm: syz-executor.0 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Code: 50 08 00 be ff ff ff ff 48 c7 c7 08 3a 02 85 e8 6e 9e ad 02 31 ff 41 89 c4 89 c6 e8 d2 49 08 00 45 85 e4 75 07 e8 78 50 08 00 <0f> 0b e8 71 50 08 00 48 89 ea 83 e5 07 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff888049ed79b8 EFLAGS: 00010016 RAX: 0000000000000985 RBX: ffff88800e65a800 RCX: ffffc9000522c000 RDX: 0000000000040000 RSI: ffffffff81384ec8 RDI: 0000000000000005 RBP: ffffffff85676efc R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800bf28000 R14: ffff88800dbbd400 R15: 0000000000000000 FS: 00007f1d94212700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b99ecd018 CR3: 000000000f356000 CR4: 0000000000350ee0 Call Trace: cgroup_path_ns_locked+0x6c/0x110 kernel/cgroup/cgroup.c:2261 proc_cpuset_show+0x19a/0x510 kernel/cgroup/cpuset.c:3732 proc_single_show+0x121/0x1f0 fs/proc/base.c:775 seq_read_iter+0x510/0x12b0 fs/seq_file.c:230 seq_read+0x3dd/0x5b0 fs/seq_file.c:162 do_loop_readv_writev fs/read_write.c:761 [inline] do_loop_readv_writev fs/read_write.c:748 [inline] do_iter_read+0x4fa/0x760 fs/read_write.c:803 vfs_readv+0xe5/0x160 fs/read_write.c:921 do_readv+0x139/0x300 fs/read_write.c:958 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f1d96c9cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1d94212188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f1d96daff60 RCX: 00007f1d96c9cb19 RDX: 0000000000000001 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00007f1d96cf6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7d889aaf R14: 00007f1d94212300 R15: 0000000000022000 irq event stamp: 192 hardirqs last enabled at (191): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (191): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (192): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (192): [] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167 softirqs last enabled at (0): [] copy_process+0x16ed/0x7800 kernel/fork.c:2075 softirqs last disabled at (0): [<0000000000000000>] 0x0 ---[ end trace 0627d92bb0ad77dd ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5907 at kernel/cgroup/cgroup.c:1395 cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Modules linked in: CPU: 1 PID: 5907 Comm: syz-executor.0 Tainted: G W 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Code: 50 08 00 be ff ff ff ff 48 c7 c7 08 3a 02 85 e8 6e 9e ad 02 31 ff 41 89 c4 89 c6 e8 d2 49 08 00 45 85 e4 75 07 e8 78 50 08 00 <0f> 0b e8 71 50 08 00 48 89 ea 83 e5 07 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff888049eff9b8 EFLAGS: 00010016 RAX: 00000000000001d5 RBX: ffff88800e65a800 RCX: ffffc90005c31000 RDX: 0000000000040000 RSI: ffffffff81384ec8 RDI: 0000000000000005 RBP: ffffffff85676efc R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800bf28000 R14: ffff88800dbbd400 R15: 0000000000000000 FS: 00007f1d941f1700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b9732ed80 CR3: 000000000f356000 CR4: 0000000000350ee0 Call Trace: cgroup_path_ns_locked+0x6c/0x110 kernel/cgroup/cgroup.c:2261 proc_cpuset_show+0x19a/0x510 kernel/cgroup/cpuset.c:3732 proc_single_show+0x121/0x1f0 fs/proc/base.c:775 seq_read_iter+0x510/0x12b0 fs/seq_file.c:230 seq_read+0x3dd/0x5b0 fs/seq_file.c:162 do_loop_readv_writev fs/read_write.c:761 [inline] do_loop_readv_writev fs/read_write.c:748 [inline] do_iter_read+0x4fa/0x760 fs/read_write.c:803 vfs_readv+0xe5/0x160 fs/read_write.c:921 do_readv+0x139/0x300 fs/read_write.c:958 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f1d96c9cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1d941f1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007f1d96db0020 RCX: 00007f1d96c9cb19 RDX: 0000000000000001 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00007f1d96cf6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7d889aaf R14: 00007f1d941f1300 R15: 0000000000022000 irq event stamp: 48 hardirqs last enabled at (47): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (47): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (48): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (48): [] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167 softirqs last enabled at (26): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (19): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 0627d92bb0ad77de ]--- EXT4-fs (loop6): mounted filesystem without journal. Opts: ,errors=continue FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 5910 Comm: syz-executor.7 Tainted: G W 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] __kmalloc+0x72/0x390 mm/slub.c:3967 kmalloc_array include/linux/slab.h:592 [inline] kcalloc include/linux/slab.h:603 [inline] ext4_find_extent+0xa3d/0xd30 fs/ext4/extents.c:906 ext4_ext_map_blocks+0x1c8/0x5830 fs/ext4/extents.c:4138 ext4_map_blocks+0x63f/0x1910 fs/ext4/inode.c:672 ext4_iomap_alloc fs/ext4/inode.c:3493 [inline] ext4_iomap_begin+0x3ad/0x700 fs/ext4/inode.c:3543 iomap_apply+0x164/0x810 fs/iomap/apply.c:46 __iomap_dio_rw+0x6cd/0x1110 fs/iomap/direct-io.c:517 iomap_dio_rw+0x31/0x90 fs/iomap/direct-io.c:605 ext4_dio_write_iter fs/ext4/file.c:571 [inline] ext4_file_write_iter+0xb26/0x18d0 fs/ext4/file.c:681 call_write_iter include/linux/fs.h:2002 [inline] new_sync_write+0x42c/0x660 fs/read_write.c:518 vfs_write+0x7c0/0xb10 fs/read_write.c:605 ksys_write+0x12d/0x260 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f57ef452b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f57ec9c8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f57ef565f60 RCX: 00007f57ef452b19 RDX: 000000000000fdef RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f57ec9c81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd7737f25f R14: 00007f57ec9c8300 R15: 0000000000022000 netlink: 112 bytes leftover after parsing attributes in process `syz-executor.0'.