Hello, syzbot found the following issue on: HEAD commit: 2e7aff49b5da Merge branches 'for-next/core' and 'for-next/.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1129f7e8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=696fb014d05da3a3 dashboard link: https://syzkaller.appspot.com/bug?extid=ccda44e9a0f765fd9706 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ef408f67fde3/disk-2e7aff49.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/414ac17a20dc/vmlinux-2e7aff49.xz kernel image: https://storage.googleapis.com/syzbot-assets/a93415d2a7e7/Image-2e7aff49.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ccda44e9a0f765fd9706@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at mm/slub.c:3071! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 10301 Comm: syz.8.517 Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : deactivate_slab+0x2cc/0x36c mm/slub.c:3103 lr : ___slab_alloc+0x3c8/0xf4c mm/slub.c:3740 sp : ffff80009d7f7370 x29: ffff80009d7f7370 x28: 0000000000000000 x27: ffff8000810d3d04 x26: 0000000000000000 x25: 0080170003ffff00 x24: 0000000000000001 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d71c1640 x20: ffff0000c898cd80 x19: fffffdffc36df305 x18: ffff0000d8a02240 x17: ffff800123d64000 x16: ffff800080460e20 x15: 0000000000000001 x14: 1ffff00011f300ca x13: ffff80009d7f8000 x12: 0000000000000003 x11: 0000000000080000 x10: 0000000000000003 x9 : 0000000000000000 x8 : ffff0000d71c1640 x7 : ffff800080b4ee7c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 01f5000000000000 x2 : 0080170003ffff00 x1 : fffffdffc36df305 x0 : ffff0000d71c1640 Call trace: add_partial mm/slub.c:3103 [inline] (P) deactivate_slab+0x2cc/0x36c mm/slub.c:3097 (P) ___slab_alloc+0x3c8/0xf4c mm/slub.c:3740 (L) ___slab_alloc+0x3c8/0xf4c mm/slub.c:3740 __slab_alloc+0x74/0xd0 mm/slub.c:3905 __slab_alloc_node mm/slub.c:3980 [inline] slab_alloc_node mm/slub.c:4141 [inline] kmem_cache_alloc_noprof+0x300/0x410 mm/slub.c:4160 ext4_mb_add_groupinfo+0x5d8/0xdf4 fs/ext4/mballoc.c:3356 ext4_mb_init_backend fs/ext4/mballoc.c:3435 [inline] ext4_mb_init+0x107c/0x2014 fs/ext4/mballoc.c:3733 __ext4_fill_super fs/ext4/super.c:5559 [inline] ext4_fill_super+0x4b50/0x57d0 fs/ext4/super.c:5733 get_tree_bdev_flags+0x38c/0x494 fs/super.c:1636 get_tree_bdev+0x2c/0x3c fs/super.c:1659 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5765 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3507 path_mount+0x590/0xe04 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __arm64_sys_mount+0x4d4/0x5ac fs/namespace.c:4034 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: d50323bf d65f03c0 d4210000 17ffffc0 (d4210000) ---[ end trace 0000000000000000 ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
