Messages in this thread | | | Date | Wed, 27 Jan 2021 08:56:22 -0800 | Subject | WARNING in __do_kernel_fault | From | syzbot <> |
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Hello,
syzbot found the following issue on:
HEAD commit: 2ab38c17 mailmap: remove the "repo-abbrev" comment git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15a25264d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ad43be24faf1194c dashboard link: https://syzkaller.appspot.com/bug?extid=45b6fce29ff97069e2c5 userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+45b6fce29ff97069e2c5@syzkaller.appspotmail.com
REISERFS (device loop0): Using rupasov hash to sort names ------------[ cut here ]------------ Ignoring spurious kernel translation fault at virtual address 0000000000000030 WARNING: CPU: 1 PID: 5380 at arch/arm64/mm/fault.c:364 __do_kernel_fault+0x198/0x1c0 arch/arm64/mm/fault.c:364 Modules linked in: CPU: 1 PID: 5380 Comm: syz-executor.0 Not tainted 5.11.0-rc5-syzkaller-00037-g2ab38c17aac1 #0 Hardware name: linux,dummy-virt (DT) pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--) pc : __do_kernel_fault+0x198/0x1c0 arch/arm64/mm/fault.c:364 lr : __do_kernel_fault+0x198/0x1c0 arch/arm64/mm/fault.c:364 sp : ffff800014933830 x29: ffff800014933830 x28: f1ff00000c28bc00 x27: ffff80001231db80 x26: f0ff00002054a0b8 x25: 0000000000000000 x24: f1ff000004217680 x23: 0000000097c78006 x22: 0000000000000030 x21: 0000000000000025 x20: ffff800014933960 x19: 0000000097c78006 x18: 00000000fffffffb x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000020 x14: 6c656e72656b2073 x13: 00000000000006f9 x12: ffff8000149334e0 x11: ffff80001313b450 x10: 00000000ffffe000 x9 : ffff80001313b450 x8 : ffff80001308b450 x7 : ffff80001313b450 x6 : 0000000000000000 x5 : ffff00007fbe1948 x4 : 0000000000015ff5 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f1ff00000c28bc00 Call trace: __do_kernel_fault+0x198/0x1c0 arch/arm64/mm/fault.c:364 do_page_fault+0x1c0/0x3a0 arch/arm64/mm/fault.c:649 do_translation_fault+0xb4/0xc4 arch/arm64/mm/fault.c:660 do_mem_abort+0x44/0xbc arch/arm64/mm/fault.c:793 el1_abort+0x40/0x6c arch/arm64/kernel/entry-common.c:118 el1_sync_handler+0xb0/0xcc arch/arm64/kernel/entry-common.c:209 el1_sync+0x70/0x100 arch/arm64/kernel/entry.S:656 reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:79 [inline] reiserfs_security_init+0x98/0x10c fs/reiserfs/xattr_security.c:70 reiserfs_mkdir+0xf4/0x320 fs/reiserfs/namei.c:821 xattr_mkdir.constprop.0+0x24/0x3c fs/reiserfs/xattr.c:76 create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x16c/0x320 fs/reiserfs/xattr.c:1011 reiserfs_fill_super+0xa34/0xd20 fs/reiserfs/super.c:2177 mount_bdev+0x1c4/0x1f0 fs/super.c:1366 get_super_block+0x1c/0x30 fs/reiserfs/super.c:2606 legacy_get_tree+0x34/0x64 fs/fs_context.c:592 vfs_get_tree+0x2c/0xf0 fs/super.c:1496 do_new_mount fs/namespace.c:2881 [inline] path_mount+0x3e8/0xaf0 fs/namespace.c:3211 do_mount fs/namespace.c:3224 [inline] __do_sys_mount fs/namespace.c:3432 [inline] __se_sys_mount fs/namespace.c:3409 [inline] __arm64_sys_mount+0x1a8/0x2fc fs/namespace.c:3409 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline] el0_svc_common.constprop.0+0x74/0x190 arch/arm64/kernel/syscall.c:159 do_el0_svc+0x78/0x90 arch/arm64/kernel/syscall.c:198 el0_svc+0x14/0x20 arch/arm64/kernel/entry-common.c:365 el0_sync_handler+0x1a8/0x1b0 arch/arm64/kernel/entry-common.c:381 el0_sync+0x190/0x1c0 arch/arm64/kernel/entry.S:699
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