https://bugzilla.kernel.org/show_bug.cgi?id=216151 --- Comment #1 from Zorro Lang (zlang@xxxxxxxxxx) --- # ./scripts/decode_stacktrace.sh vmlinux < crash.log [26844.323108] run fstests generic/465 at 2022-06-20 00:24:32 [26847.872804] ================================================================== [26847.872854] BUG: KASAN: use-after-free in _copy_to_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c:667 (discriminator 31)) [26847.872992] Write of size 16 at addr ffff2fb1d4013000 by task nfsd/45920 [26847.872999] [26847.873090] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [26847.873094] Call trace: [26847.873174] dump_backtrace (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/stacktrace.c:200) [26847.873198] show_stack (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/stacktrace.c:207) [26847.873203] dump_stack_lvl (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/dump_stack.c:107 (discriminator 4)) [26847.873262] print_address_description.constprop.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/mm.h:848 /mnt/tests/kernel/distribution/upstream-kernel/ins tall/kernel/mm/kasan/report.c:210 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/report.c:311) [26847.873285] print_report (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/report.c:390 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/report. c:430) [26847.873290] kasan_report (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/report.c:162 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/report. c:493) [26847.873294] kasan_check_range (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/generic.c:173 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/g eneric.c:189) [26847.873298] memcpy (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/shadow.c:65 (discriminator 1)) [26847.873303] _copy_to_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c:667 (discriminator 31)) [26847.873307] copy_page_to_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c:855 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c :880) [26847.873311] filemap_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/uio.h:153 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/filemap.c :2730) [26847.873319] generic_file_read_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/filemap.c:2825) [26847.873324] xfs_file_buffered_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/xfs/xfs_file.c:270) xfs [26847.873854] xfs_file_read_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/xfs/xfs_file.c:295) xfs [26847.874168] do_iter_readv_writev (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/fs.h:2052 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/r ead_write.c:740) [26847.874176] do_iter_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/read_write.c:803) [26847.874180] vfs_iter_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/read_write.c:846) [26847.874185] nfsd_readv (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/vfs.c:931) nfsd [175/1812] [26847.874308] nfsd4_encode_read_plus_data (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4xdr.c:4762) nfsd [26847.874387] nfsd4_encode_read_plus (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4xdr.c:4795 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nf sd/nfs4xdr.c:4854) nfsd [26847.874468] nfsd4_encode_operation (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4xdr.c:5323 (discriminator 4)) nfsd [26847.874544] nfsd4_proc_compound (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4proc.c:2757) nfsd [26847.874620] nfsd_dispatch (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfssvc.c:1056) nfsd [26847.874697] svc_process_common (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/svc.c:1339) sunrpc [26847.874921] svc_process (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/svc.c:1470) sunrpc [26847.875063] nfsd (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfssvc.c:979) nfsd [26847.875143] kthread (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/kthread.c:376) [26847.875170] ret_from_fork (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry.S:868) [26847.875178] [26847.875180] Allocated by task 602477: [26847.875185] kasan_save_stack (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/common.c:39) [26847.875191] __kasan_slab_alloc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/common.c:45 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/co mmon.c:436 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/common.c:469) [26847.875195] kmem_cache_alloc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/slab.h:750 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/slub.c:3214 /mnt/ tests/kernel/distribution/upstream-kernel/install/kernel/mm/slub.c:3222 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/slub.c:3229 /mnt/tests/kernel/distribution/upstream-ke rnel/install/kernel/mm/slub.c:3239) [26847.875199] security_inode_alloc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/security/security.c:594 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/securi ty/security.c:1024) [26847.875221] inode_init_always (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:195) [26847.875228] alloc_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:267) [26847.875232] new_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1018 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1047) [26847.875236] debugfs_create_dir (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/debugfs/inode.c:72 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/debugfs /inode.c:578) [26847.875243] rpc_clnt_debugfs_register (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/debugfs.c:157) sunrpc [26847.875384] rpc_client_register (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/clnt.c:306) sunrpc [26847.875526] rpc_new_client (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/clnt.c:431) sunrpc [26847.875666] __rpc_clone_client (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/clnt.c:642) sunrpc [26847.875831] rpc_clone_client (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/clnt.c:670) sunrpc [26847.875972] nfs4_proc_lookup_mountpoint (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfs/nfs4proc.c:4507 (discriminator 1)) nfsv4 [26847.876149] nfs4_submount (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfs/nfs4namespace.c:460) nfsv4 [26847.876251] nfs_d_automount (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfs/namespace.c:189) nfs [26847.876389] __traverse_mounts (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:1355 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:1400) [26847.876396] step_into (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:1539 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:1844) [26847.876400] walk_component (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:2020) [26847.876405] link_path_walk.part.0.constprop.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:2341) [26847.876410] path_lookupat (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:2466 (discriminator 2) /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/ namei.c:2492 (discriminator 2)) [26847.876436] filename_lookup (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:2522) [26847.876440] vfs_path_lookup (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namei.c:2638) [26847.876445] mount_subtree (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace.c:3549) [26847.876451] do_nfs4_mount (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfs/nfs4super.c:206) nfsv4 [26847.876554] nfs4_try_get_tree (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfs/nfs4super.c:226 (discriminator 3)) nfsv4 [26847.876653] nfs_get_tree (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfs/fs_context.c:1433) nfs [26847.876742] vfs_get_tree (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/super.c:1497) [26847.876748] do_new_mount (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace.c:3040) [26847.876753] path_mount (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace.c:3370) [26847.876757] __arm64_sys_mount (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace.c:3383 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace. c:3591 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace.c:3568 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/namespace.c:3568) [26847.876762] invoke_syscall.constprop.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/syscall.c:38 /mnt/tests/kernel/distribution/upstream-kernel/install/ kernel/arch/arm64/kernel/syscall.c:52) [26847.876769] el0_svc_common.constprop.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/syscall.c:158) [26847.876774] do_el0_svc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/syscall.c:207) [26847.876778] el0_svc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry-common.c:133 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/a rm64/kernel/entry-common.c:142 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry-common.c:625) [26847.876785] el0t_64_sync_handler (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry-common.c:643) [26847.876789] el0t_64_sync (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry.S:581) [26847.876793] [26847.876794] Last potentially related work creation: [26847.876797] kasan_save_stack (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/common.c:39) [26847.876802] __kasan_record_aux_stack (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/generic.c:348) [26847.876806] kasan_record_aux_stack_noalloc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/generic.c:359) [26847.876811] call_rcu (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/rcu/tree.c:3127) [26847.876818] security_inode_free (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/security/security.c:1058) [26847.876823] __destroy_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/fsnotify.h:176 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/i node.c:286) [26847.876828] destroy_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:309 (discriminator 2)) [26847.876832] evict (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:680 (discriminator 2)) [26847.876836] iput_final (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1745) [26847.876841] iput.part.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1772) [26847.876845] iput (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1772 (discriminator 2)) [26847.876849] dentry_unlink_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/dcache.c:402) [26847.876853] __dentry_kill (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./arch/arm64/include/asm/current.h:19 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel /./arch/arm64/include/asm/preempt.h:47 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/dcache.c:610) [26847.876857] dput (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/dcache.c:896) [26847.876860] simple_recursive_removal (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/libfs.c:312) [26847.876865] debugfs_remove (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/debugfs/inode.c:743 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/debugfs/in ode.c:736) [26847.876870] rpc_clnt_debugfs_unregister (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/debugfs.c:170) sunrpc [26847.877011] rpc_free_client_work (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/clnt.c:357 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunr pc/clnt.c:897) sunrpc [26847.877154] process_one_work (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/workqueue.c:2294) [26847.877161] worker_thread (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/list.h:292 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/wor kqueue.c:2437) [26847.877165] kthread (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/kthread.c:376) [88/1812] [26847.877168] ret_from_fork (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry.S:868) [26847.877172] [26847.877174] Second to last potentially related work creation: [26847.877177] kasan_save_stack (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/common.c:39) [26847.877181] __kasan_record_aux_stack (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/generic.c:348) [26847.877185] kasan_record_aux_stack_noalloc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/generic.c:359) [26847.877190] call_rcu (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/rcu/tree.c:3127) [26847.877195] security_inode_free (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/security/security.c:1058) [26847.877200] __destroy_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/fsnotify.h:176 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/i node.c:286) [26847.877205] destroy_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:309 (discriminator 2)) [26847.877209] evict (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:680 (discriminator 2)) [26847.877213] iput_final (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1745) [26847.877217] iput.part.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1772) [26847.877221] iput (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/inode.c:1772 (discriminator 2)) [26847.877226] dentry_unlink_inode (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/dcache.c:402) [26847.877229] __dentry_kill (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./arch/arm64/include/asm/current.h:19 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel /./arch/arm64/include/asm/preempt.h:47 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/dcache.c:610) [26847.877233] dput (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/dcache.c:896) [26847.877237] __fput (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/file_table.c:331) [26847.877241] ____fput (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/file_table.c:351) [26847.877245] task_work_run (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/task_work.c:179 (discriminator 1)) [26847.877250] do_exit (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/exit.c:804) [26847.877256] do_group_exit (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/exit.c:906) [26847.877260] __arm64_sys_exit_group (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/exit.c:934) [26847.877264] invoke_syscall.constprop.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/syscall.c:38 /mnt/tests/kernel/distribution/upstream-kernel/install/ kernel/arch/arm64/kernel/syscall.c:52) [26847.877270] el0_svc_common.constprop.0 (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/syscall.c:158) [26847.877275] do_el0_svc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/syscall.c:207) [26847.877280] el0_svc (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry-common.c:133 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/a rm64/kernel/entry-common.c:142 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry-common.c:625) [26847.877284] el0t_64_sync_handler (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry-common.c:643) [26847.877288] el0t_64_sync (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry.S:581) [26847.877292] [26847.877293] The buggy address belongs to the object at ffff2fb1d4013000 [26847.877293] which belongs to the cache lsm_inode_cache of size 128 [26847.877298] The buggy address is located 0 bytes inside of [26847.877298] 128-byte region [ffff2fb1d4013000, ffff2fb1d4013080) [26847.877302] [26847.877304] The buggy address belongs to the physical page: [26847.877308] page:000000007bc4a504 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff2fb1d4013000 pfn:0x154013 [47/1812] [26847.877363] flags: 0x17ffff800000200(slab|node=0|zone=2|lastcpupid=0xfffff) [26847.877375] raw: 017ffff800000200 fffffcbec6646688 fffffcbec750d708 ffff2fb1808dfe00 [26847.877379] raw: ffff2fb1d4013000 0000000000150010 00000001ffffffff 0000000000000000 [26847.877382] page dumped because: kasan: bad access detected [26847.877384] [26847.877385] Memory state around the buggy address: [26847.877389] ffff2fb1d4012f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [26847.877392] ffff2fb1d4012f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [26847.877395] >ffff2fb1d4013000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [26847.877397] ^ [26847.877400] ffff2fb1d4013080: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [26847.877402] ffff2fb1d4013100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [26847.877405] ================================================================== [26847.877570] Disabling lock debugging due to kernel taint [26848.391268] Unable to handle kernel write to read-only memory at virtual address ffff2fb197f76000 [26848.393628] KASAN: maybe wild-memory-access in range [0xfffd7d8cbfbb0000-0xfffd7d8cbfbb0007] [26848.395572] Mem abort info: [26848.396408] ESR = 0x000000009600004f [26848.397314] EC = 0x25: DABT (current EL), IL = 32 bits [26848.398520] SET = 0, FnV = 0 [26848.506889] EA = 0, S1PTW = 0 [26848.507633] FSC = 0x0f: level 3 permission fault [26848.508802] Data abort info: [26848.509480] ISV = 0, ISS = 0x0000004f [26848.510347] CM = 0, WnR = 1 [26848.511032] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000b22dd000 [26848.512543] [ffff2fb197f76000] pgd=18000001bfff8003, p4d=18000001bfff8003, pud=18000001bfa08003, pmd=18000001bf948003, pte=0060000117f76f87 [26848.515600] Internal error: Oops: 9600004f [#1] SMP [26848.516870] Modules linked in: loop dm_mod tls rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache netfs rpcrdma rdma_cm iw_cm ib_cm ib_core nfsd auth_rpcgss nfs_acl lockd grace rfkill sunrpc v fat fat drm fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce virtio_blk virtio_net virtio_console net_failover failover virtio_mmio ipmi_devintf ipmi_msghandler [26848.527934] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [26848.529819] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [26848.531625] pc : __memcpy (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/lib/memcpy.S:73) [26848.532583] lr : memcpy (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/kasan/shadow.c:70) [26848.533497] sp : ffff80000bbb6f00 [26848.534444] x29: ffff80000bbb6f00 x28: 0000000000000000 x27: ffff2fb18a4bd5b8 [26848.536435] x26: 0000000000000000 x25: ffff80000bbb7740 x24: ffff2fb18a4bd5b0 [26848.538283] x23: ffff2fb1ee80bff0 x22: ffffa83e4692e000 x21: ffffa83e434ae3e8 [26848.540181] x20: ffff2fb197f76000 x19: 0000000000000010 x18: ffff2fb1d3c34530 [26848.542071] x17: 0000000000000000 x16: ffffa83e42d01a30 x15: 6161616161616161 [26848.543840] x14: 6161616161616161 x13: 6161616161616161 x12: 6161616161616161 [26848.545614] x11: 1fffe5f632feec01 x10: ffff65f632feec01 x9 : dfff800000000000 [26848.547387] x8 : ffff2fb197f7600f x7 : 6161616161616161 x6 : 6161616161616161 [26848.549156] x5 : ffff2fb197f76010 x4 : ffff2fb1ee80c000 x3 : ffffa83e434ae3e8 [26848.550924] x2 : 0000000000000010 x1 : ffff2fb1ee80bff0 x0 : ffff2fb197f76000 [26848.552694] Call trace: [26848.553314] __memcpy (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/lib/memcpy.S:73) [26848.554123] _copy_to_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c:667 (discriminator 31)) [26848.555084] copy_page_to_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c:855 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/lib/iov_iter.c :880) [26848.556104] filemap_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/uio.h:153 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/filemap.c :2730) [26848.557020] generic_file_read_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/mm/filemap.c:2825) [26848.558152] xfs_file_buffered_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/xfs/xfs_file.c:270) xfs [26848.559795] xfs_file_read_iter (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/xfs/xfs_file.c:295) xfs [26848.561265] do_iter_readv_writev (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/./include/linux/fs.h:2052 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/r ead_write.c:740) [26848.562346] do_iter_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/read_write.c:803) [26848.563263] vfs_iter_read (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/read_write.c:846) [26848.564162] nfsd_readv (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/vfs.c:931) nfsd [26848.565415] nfsd4_encode_read_plus_data (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4xdr.c:4762) nfsd [26848.566869] nfsd4_encode_read_plus (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4xdr.c:4795 /mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nf sd/nfs4xdr.c:4854) nfsd [26848.568231] nfsd4_encode_operation (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4xdr.c:5323 (discriminator 4)) nfsd [26848.569596] nfsd4_proc_compound (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfs4proc.c:2757) nfsd [26848.570908] nfsd_dispatch (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfssvc.c:1056) nfsd [26848.572067] svc_process_common (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/svc.c:1339) sunrpc [26848.573508] svc_process (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/net/sunrpc/svc.c:1470) sunrpc [26848.574743] nfsd (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/fs/nfsd/nfssvc.c:979) nfsd [26848.575718] kthread (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/kernel/kthread.c:376) [26848.576528] ret_from_fork (/mnt/tests/kernel/distribution/upstream-kernel/install/kernel/arch/arm64/kernel/entry.S:868) [26848.577421] Code: f100405f 540000c3 a9401c26 a97f348c (a9001c06) All code ======== 0: f100405f cmp x2, #0x10 4: 540000c3 b.cc 0x1c // b.lo, b.ul, b.last 8: a9401c26 ldp x6, x7, [x1] c: a97f348c ldp x12, x13, [x4, #-16] 10:* a9001c06 stp x6, x7, [x0] <-- trapping instruction Code starting with the faulting instruction =========================================== 0: a9001c06 stp x6, x7, [x0] [26848.578934] SMP: stopping secondary CPUs [26848.582664] Starting crashdump kernel... [26848.583602] Bye! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
