BUG: stack guard page was hit at ffffc900067cfff8 (stack is ffffc900067d0000..ffffc900067d7fff) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4391 Comm: syz-executor.1 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__unwind_start+0x8/0x420 arch/x86/kernel/unwind_frame.c:365 Code: 4d fe ff ff e8 99 36 73 00 e9 43 fe ff ff e8 bf ee 5c 03 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 83 ec 50 48 89 4d d0 49 89 d7 49 89 f4 49 89 fd RSP: 0018:ffffc900067d0000 EFLAGS: 00010046 RAX: ffff888111ed4f00 RBX: 1ffff92000cfa022 RCX: ffffc900067d00b0 RDX: 0000000000000000 RSI: ffff888111ed4f00 RDI: ffffc900067d0020 RBP: ffffc900067d0010 R08: dffffc0000000000 R09: ffffc900067d01e0 R10: fffff52000cfa04c R11: 1ffff92000cfa03c R12: ffff888111ed4f00 R13: ffffffff815b5630 R14: ffffc900067d0100 R15: 0000000000000000 FS: 00007fcae1222700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc900067cfff8 CR3: 0000000111323000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0xdc/0x140 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:121 save_stack+0x97/0x240 mm/page_owner.c:146 __reset_page_owner+0x36/0x160 mm/page_owner.c:174 reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1331 [inline] __free_pages_ok+0x7a7/0x7e0 mm/page_alloc.c:1611 free_the_page mm/page_alloc.c:5174 [inline] __free_pages+0x2d3/0x4a0 mm/page_alloc.c:5180 __free_slab+0xd3/0x190 mm/slub.c:1903 free_slab mm/slub.c:1918 [inline] discard_slab mm/slub.c:1924 [inline] unfreeze_partials+0x17d/0x1b0 mm/slub.c:2418 put_cpu_partial+0xc8/0x190 mm/slub.c:2454 __slab_free+0x2d8/0x3a0 mm/slub.c:3104 do_slab_free mm/slub.c:3200 [inline] ___cache_free+0x11f/0x140 mm/slub.c:3219 qlink_free+0x38/0x40 mm/kasan/quarantine.c:146 qlist_free_all+0x4c/0xc0 mm/kasan/quarantine.c:165 kasan_quarantine_reduce+0x15a/0x170 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:438 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:583 [inline] slab_alloc_node mm/slub.c:2956 [inline] slab_alloc mm/slub.c:2964 [inline] kmem_cache_alloc+0x16c/0x300 mm/slub.c:2969 mb_cache_entry_create+0x16b/0x730 fs/mbcache.c:88 ext4_xattr_block_cache_insert fs/ext4/xattr.c:2978 [inline] ext4_xattr_block_get fs/ext4/xattr.c:539 [inline] ext4_xattr_get+0x32b/0x810 fs/ext4/xattr.c:654 ext4_xattr_security_get+0x32/0x40 fs/ext4/xattr_security.c:20 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 vfs_getxattr_alloc+0x496/0x610 fs/xattr.c:348 cap_inode_getsecurity+0x149/0x820 security/commoncap.c:391 security_inode_getsecurity+0xab/0x140 security/security.c:1346 xattr_getsecurity fs/xattr.c:304 [inline] __vfs_getxattr+0x5dc/0x700 fs/xattr.c:384 vfs_getxattr+0x54/0x60 fs/xattr.c:406 incfs_getxattr fs/incfs/vfs.c:1668 [inline] incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399 cap_inode_need_killpriv+0x4b/0x70 security/commoncap.c:300 security_inode_need_killpriv+0x50/0xb0 security/security.c:1327 notify_change+0x4fd/0xe10 fs/attr.c:273 chown_common+0x3a1/0x660 fs/open.c:675 do_fchownat+0x175/0x250 fs/open.c:705 __do_sys_chown fs/open.c:725 [inline] __se_sys_chown fs/open.c:723 [inline] __x64_sys_chown+0x82/0x90 fs/open.c:723 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fcae20ee049 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcae1222168 EFLAGS: 00000246 ORIG_RAX: 000000000000005c RAX: ffffffffffffffda RBX: 00007fcae2201100 RCX: 00007fcae20ee049 RDX: 000000000000ee01 RSI: ffffffffffffffff RDI: 0000000020000280 RBP: 00007fcae214808d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe79bf4d6f R14: 00007fcae1222300 R15: 0000000000022000 Modules linked in: ---[ end trace 577e942ba634df6f ]--- RIP: 0010:__unwind_start+0x8/0x420 arch/x86/kernel/unwind_frame.c:365 Code: 4d fe ff ff e8 99 36 73 00 e9 43 fe ff ff e8 bf ee 5c 03 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 83 ec 50 48 89 4d d0 49 89 d7 49 89 f4 49 89 fd RSP: 0018:ffffc900067d0000 EFLAGS: 00010046 RAX: ffff888111ed4f00 RBX: 1ffff92000cfa022 RCX: ffffc900067d00b0 RDX: 0000000000000000 RSI: ffff888111ed4f00 RDI: ffffc900067d0020 RBP: ffffc900067d0010 R08: dffffc0000000000 R09: ffffc900067d01e0 R10: fffff52000cfa04c R11: 1ffff92000cfa03c R12: ffff888111ed4f00 R13: ffffffff815b5630 R14: ffffc900067d0100 R15: 0000000000000000 FS: 00007fcae1222700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc900067cfff8 CR3: 0000000111323000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 4 bytes skipped: 0: e8 99 36 73 00 callq 0x73369e 5: e9 43 fe ff ff jmpq 0xfffffe4d a: e8 bf ee 5c 03 callq 0x35ceece f: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 16: 00 00 00 00 1a: 0f 1f 40 00 nopl 0x0(%rax) 1e: 55 push %rbp 1f: 48 89 e5 mov %rsp,%rbp 22: 41 57 push %r15 24: 41 56 push %r14 * 26: 41 55 push %r13 <-- trapping instruction 28: 41 54 push %r12 2a: 53 push %rbx 2b: 48 83 ec 50 sub $0x50,%rsp 2f: 48 89 4d d0 mov %rcx,-0x30(%rbp) 33: 49 89 d7 mov %rdx,%r15 36: 49 89 f4 mov %rsi,%r12 39: 49 89 fd mov %rdi,%r13