------------[ cut here ]------------ WARNING: CPU: 1 PID: 6328 at mm/slab_common.c:935 free_large_kmalloc+0x34/0x138 mm/slab_common.c:936 Modules linked in: CPU: 1 PID: 6328 Comm: syz-executor.5 Not tainted 6.3.0-rc4-syzkaller-g59caa87f9dfb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : free_large_kmalloc+0x34/0x138 mm/slab_common.c:936 lr : kfree+0x104/0x1a8 mm/slab_common.c:1013 sp : ffff8000212474e0 x29: ffff8000212474e0 x28: ffff00012fbc7108 x27: ffff0001206e15a4 x26: dfff800000000000 x25: 0000000000000020 x24: ffff0000d02ac700 x23: ffff0000d02ac600 x22: 0000000000000000 x21: ffff8000088130dc x20: ffff0001206e15a4 x19: fffffc000481b840 x18: ffff800021246e80 x17: 000000008ebdda61 x16: ffff800012324854 x15: ffff800008a741d8 x14: ffff800008a73da8 x13: ffff8000080631f0 x12: 0000000000040000 x11: 000000000000cd9a x10: ffff80002864c000 x9 : 05ffc0000000203a x8 : ffff8000187c1000 x7 : ffff80000806345c x6 : ffff80000806366c x5 : ffff0000f75cceb8 x4 : ffff8000212472b0 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff0001206e15a4 x0 : fffffc000481b840 Call trace: free_large_kmalloc+0x34/0x138 mm/slab_common.c:936 kfree+0x104/0x1a8 mm/slab_common.c:1013 kvfree+0x40/0x50 mm/util.c:649 ext4_xattr_move_to_block fs/ext4/xattr.c:2680 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2743 [inline] ext4_expand_extra_isize_ea+0xcec/0x16b4 fs/ext4/xattr.c:2835 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5960 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6003 [inline] __ext4_mark_inode_dirty+0x460/0x85c fs/ext4/inode.c:6081 __ext4_unlink+0x768/0x998 fs/ext4/namei.c:3255 ext4_unlink+0x1b4/0x6a0 fs/ext4/namei.c:3298 vfs_unlink+0x2f0/0x508 fs/namei.c:4250 do_unlinkat+0x4c8/0x82c fs/namei.c:4316 __do_sys_unlinkat fs/namei.c:4359 [inline] __se_sys_unlinkat fs/namei.c:4352 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 irq event stamp: 4710 hardirqs last enabled at (4709): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:242 hardirqs last disabled at (4710): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4518): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (4518): [] __do_softirq+0xacc/0xd60 kernel/softirq.c:600 softirqs last disabled at (4333): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]--- object pointer: 0x00000000e56e7d2d ================================================================== BUG: KASAN: invalid-free in kfree+0x104/0x1a8 mm/slab_common.c:1013 Free of addr ffff0001206e15a4 by task syz-executor.5/6328 CPU: 0 PID: 6328 Comm: syz-executor.5 Tainted: G W 6.3.0-rc4-syzkaller-g59caa87f9dfb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x174/0x514 mm/kasan/report.c:430 kasan_report_invalid_free+0xc4/0x114 mm/kasan/report.c:501 __kasan_kfree_large+0xa4/0xc0 mm/kasan/common.c:272 kasan_kfree_large include/linux/kasan.h:170 [inline] free_large_kmalloc+0x70/0x138 mm/slab_common.c:939 kfree+0x104/0x1a8 mm/slab_common.c:1013 kvfree+0x40/0x50 mm/util.c:649 ext4_xattr_move_to_block fs/ext4/xattr.c:2680 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2743 [inline] ext4_expand_extra_isize_ea+0xcec/0x16b4 fs/ext4/xattr.c:2835 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5960 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6003 [inline] __ext4_mark_inode_dirty+0x460/0x85c fs/ext4/inode.c:6081 __ext4_unlink+0x768/0x998 fs/ext4/namei.c:3255 ext4_unlink+0x1b4/0x6a0 fs/ext4/namei.c:3298 vfs_unlink+0x2f0/0x508 fs/namei.c:4250 do_unlinkat+0x4c8/0x82c fs/namei.c:4316 __do_sys_unlinkat fs/namei.c:4359 [inline] __se_sys_unlinkat fs/namei.c:4352 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 The buggy address belongs to the physical page: page:00000000329ee276 refcount:2 mapcount:0 mapping:0000000052510989 index:0x1 pfn:0x1606e1 memcg:ffff000131d48000 aops:def_blk_aops ino:700005 flags: 0x5ffc0000000203a(referenced|dirty|lru|active|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc0000000203a fffffc00032b6208 fffffc0004ca8488 ffff0000c0485510 raw: 0000000000000001 ffff0000dfcad9f8 00000002ffffffff ffff000131d48000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0001206e1480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0001206e1500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0001206e1580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff0001206e1600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0001206e1680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================