EXT4-fs: Warning: mounting with an experimental mount option 'dioread_nolock' for blocksize < PAGE_SIZE EXT4-fs (loop2): 1 truncate cleaned up EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7773 at mm/slab_common.c:923 free_large_kmalloc+0x34/0x15c mm/slab_common.c:924 Modules linked in: CPU: 0 PID: 7773 Comm: syz-executor.2 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 : ffff80001ecf74e0 x29: ffff80001ecf74e0 x28: ffff0000d743d800 x27: dfff800000000000 x26: 0000000000000020 x25: ffff000127aef5a4 x24: 0000000000000020 x23: ffff0000db510800 x22: 0000000000000000 x21: ffff800008808174 x20: ffff000127aef5a4 x19: fffffc00049ebbc0 x18: ffff80001ecf6e60 x17: 0000000000000000 x16: ffff8000120d9934 x15: ffff800008a6534c x14: ffff800008a64f1c x13: ffff800008061bb4 x12: 0000000000040000 x11: 00000000000133aa x10: ffff800022519000 x9 : 00000000049ebbc0 x8 : ffff800017e93000 x7 : ffff800008061ea0 x6 : ffff8000080620b0 x5 : ffff0000c1f7e288 x4 : ffff80001ecf72b0 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff000127aef5a4 x0 : fffffc00049ebbc0 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: 4630 hardirqs last enabled at (4629): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (4630): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (4034): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (4032): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- object pointer: 0x000000007ee6e2ae ================================================================== BUG: KASAN: invalid-free in kfree+0x10c/0x1b8 mm/slab_common.c:1001 Free of addr ffff000127aef5a4 by task syz-executor.2/7773 CPU: 0 PID: 7773 Comm: syz-executor.2 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:00000000330f11da refcount:2 mapcount:0 mapping:00000000274e2bc3 index:0x1 pfn:0x167aef memcg:ffff0000d8ff0000 aops:def_blk_aops ino:700002 flags: 0x5ffce000002205e(referenced|uptodate|dirty|lru|workingset|private|mappedtodisk|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffce000002205e fffffc00032d05c8 fffffc0004a67648 ffff0000c049bf10 raw: 0000000000000001 ffff00012312a3a0 00000002ffffffff ffff0000d8ff0000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff000127aef480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff000127aef500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff000127aef580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff000127aef600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff000127aef680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================