EXT4-fs: Warning: mounting with an experimental mount option 'dioread_nolock' for blocksize < PAGE_SIZE EXT4-fs (loop4): 1 truncate cleaned up EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 13019 at mm/slab_common.c:923 free_large_kmalloc+0x34/0x15c mm/slab_common.c:924 Modules linked in: CPU: 1 PID: 13019 Comm: syz-executor.4 Not tainted 6.1.22-syzkaller #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+0x34/0x15c mm/slab_common.c:924 lr : kfree+0x10c/0x1b8 mm/slab_common.c:1001 sp : ffff80002b3a74e0 x29: ffff80002b3a74e0 x28: ffff0000c8777500 x27: dfff800000000000 x26: 0000000000000020 x25: ffff000111d075a4 x24: 0000000000000020 x23: ffff0000d0f54b00 x22: 0000000000000000 x21: ffff800008808174 x20: ffff000111d075a4 x19: fffffc00044741c0 x18: ffff80002b3a6e60 x17: ffff80001557d000 x16: ffff8000120d9934 x15: ffff800008a6534c x14: 00000000ffff8000 x13: 00000000c811c865 x12: 0000000000040000 x11: 000000000000992f x10: ffff8000222da000 x9 : 00000000044741c0 x8 : ffff800017e93000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff000111d075a4 x0 : fffffc00044741c0 Call trace: free_large_kmalloc+0x34/0x15c mm/slab_common.c:924 kfree+0x10c/0x1b8 mm/slab_common.c:1001 kvfree+0x40/0x50 mm/util.c:627 ext4_xattr_move_to_block fs/ext4/xattr.c:2629 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2692 [inline] ext4_expand_extra_isize_ea+0xcbc/0x1688 fs/ext4/xattr.c:2784 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5890 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5933 [inline] __ext4_mark_inode_dirty+0x484/0x8fc fs/ext4/inode.c:6011 __ext4_unlink+0x758/0x988 fs/ext4/namei.c:3255 ext4_unlink+0x1d8/0x7d0 fs/ext4/namei.c:3298 vfs_unlink+0x2f0/0x508 fs/namei.c:4252 do_unlinkat+0x4c8/0x82c fs/namei.c:4320 __do_sys_unlinkat fs/namei.c:4363 [inline] __se_sys_unlinkat fs/namei.c:4356 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4356 __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+0x64/0x218 arch/arm64/kernel/syscall.c:206 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+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 4088 hardirqs last enabled at (4087): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (4088): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4044): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (4044): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (4035): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- object pointer: 0x00000000dceccdd5 ================================================================== BUG: KASAN: invalid-free in kfree+0x10c/0x1b8 mm/slab_common.c:1001 Free of addr ffff000111d075a4 by task syz-executor.4/13019 CPU: 0 PID: 13019 Comm: syz-executor.4 Tainted: G W 6.1.22-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1c8/0x1f4 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+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:395 kasan_report_invalid_free+0xc4/0x114 mm/kasan/report.c:460 __kasan_kfree_large+0xa4/0xc0 mm/kasan/common.c:272 kasan_kfree_large include/linux/kasan.h:185 [inline] free_large_kmalloc+0x70/0x15c mm/slab_common.c:927 kfree+0x10c/0x1b8 mm/slab_common.c:1001 kvfree+0x40/0x50 mm/util.c:627 ext4_xattr_move_to_block fs/ext4/xattr.c:2629 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2692 [inline] ext4_expand_extra_isize_ea+0xcbc/0x1688 fs/ext4/xattr.c:2784 __ext4_expand_extra_isize+0x290/0x348 fs/ext4/inode.c:5890 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5933 [inline] __ext4_mark_inode_dirty+0x484/0x8fc fs/ext4/inode.c:6011 __ext4_unlink+0x758/0x988 fs/ext4/namei.c:3255 ext4_unlink+0x1d8/0x7d0 fs/ext4/namei.c:3298 vfs_unlink+0x2f0/0x508 fs/namei.c:4252 do_unlinkat+0x4c8/0x82c fs/namei.c:4320 __do_sys_unlinkat fs/namei.c:4363 [inline] __se_sys_unlinkat fs/namei.c:4356 [inline] __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4356 __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+0x64/0x218 arch/arm64/kernel/syscall.c:206 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+0x18c/0x190 arch/arm64/kernel/entry.S:581 The buggy address belongs to the physical page: page:000000004ba88531 refcount:2 mapcount:0 mapping:0000000097dcf836 index:0x1 pfn:0x151d07 memcg:ffff0000d5416000 aops:def_blk_aops ino:700004 flags: 0x5ffce000002205e(referenced|uptodate|dirty|lru|workingset|private|mappedtodisk|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffce000002205e fffffc00031ee388 fffffc0004471308 ffff0000c0492910 raw: 0000000000000001 ffff0000dd5e22b8 00000002ffffffff ffff0000d5416000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff000111d07480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff000111d07500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff000111d07580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff000111d07600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff000111d07680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================