https://github.com/torvalds/linux
Revision 03f219041fdbeb31cecff41bb1cb4e1018f9cf75 authored by Luis Henriques on 17 May 2017, 11:21:07 UTC, committed by Ilya Dryomov on 14 June 2017, 17:32:43 UTC
Converting a file handle to a dentry can be done call after the inode unlink. This means that __fh_to_dentry() requires an extra check to verify the number of links is not 0. The issue can be easily reproduced using xfstest generic/426, which does something like: name_to_handle_at(&fh) echo 3 > /proc/sys/vm/drop_caches unlink() open_by_handle_at(&fh) The call to open_by_handle_at() should fail, as the file doesn't exist anymore. Link: http://tracker.ceph.com/issues/19958 Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
1 parent 32c1431
Tip revision: 03f219041fdbeb31cecff41bb1cb4e1018f9cf75 authored by Luis Henriques on 17 May 2017, 11:21:07 UTC
ceph: check i_nlink while converting a file handle to dentry
ceph: check i_nlink while converting a file handle to dentry
Tip revision: 03f2190
File | Mode | Size |
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bpf | ||
cgroup | ||
configs | ||
debug | ||
events | ||
gcov | ||
irq | ||
livepatch | ||
locking | ||
power | ||
printk | ||
rcu | ||
sched | ||
time | ||
trace | ||
.gitignore | -rw-r--r-- | 69 bytes |
Kconfig.freezer | -rw-r--r-- | 52 bytes |
Kconfig.hz | -rw-r--r-- | 1.6 KB |
Kconfig.locks | -rw-r--r-- | 4.8 KB |
Kconfig.preempt | -rw-r--r-- | 2.1 KB |
Makefile | -rw-r--r-- | 3.9 KB |
acct.c | -rw-r--r-- | 15.4 KB |
async.c | -rw-r--r-- | 9.9 KB |
audit.c | -rw-r--r-- | 61.8 KB |
audit.h | -rw-r--r-- | 10.9 KB |
audit_fsnotify.c | -rw-r--r-- | 6.1 KB |
audit_tree.c | -rw-r--r-- | 23.9 KB |
audit_watch.c | -rw-r--r-- | 14.5 KB |
auditfilter.c | -rw-r--r-- | 33.9 KB |
auditsc.c | -rw-r--r-- | 65.0 KB |
backtracetest.c | -rw-r--r-- | 2.1 KB |
bounds.c | -rw-r--r-- | 703 bytes |
capability.c | -rw-r--r-- | 13.9 KB |
compat.c | -rw-r--r-- | 29.7 KB |
configs.c | -rw-r--r-- | 2.8 KB |
context_tracking.c | -rw-r--r-- | 6.3 KB |
cpu.c | -rw-r--r-- | 44.3 KB |
cpu_pm.c | -rw-r--r-- | 6.5 KB |
crash_core.c | -rw-r--r-- | 10.5 KB |
crash_dump.c | -rw-r--r-- | 1.3 KB |
cred.c | -rw-r--r-- | 21.5 KB |
delayacct.c | -rw-r--r-- | 4.5 KB |
dma.c | -rw-r--r-- | 3.6 KB |
elfcore.c | -rw-r--r-- | 396 bytes |
exec_domain.c | -rw-r--r-- | 1.4 KB |
exit.c | -rw-r--r-- | 44.0 KB |
extable.c | -rw-r--r-- | 4.3 KB |
fork.c | -rw-r--r-- | 58.8 KB |
freezer.c | -rw-r--r-- | 4.4 KB |
futex.c | -rw-r--r-- | 93.7 KB |
futex_compat.c | -rw-r--r-- | 4.5 KB |
groups.c | -rw-r--r-- | 5.2 KB |
hung_task.c | -rw-r--r-- | 6.2 KB |
irq_work.c | -rw-r--r-- | 4.4 KB |
jump_label.c | -rw-r--r-- | 17.9 KB |
kallsyms.c | -rw-r--r-- | 16.5 KB |
kcmp.c | -rw-r--r-- | 4.4 KB |
kcov.c | -rw-r--r-- | 6.9 KB |
kexec.c | -rw-r--r-- | 6.8 KB |
kexec_core.c | -rw-r--r-- | 29.5 KB |
kexec_file.c | -rw-r--r-- | 25.4 KB |
kexec_internal.h | -rw-r--r-- | 818 bytes |
kmod.c | -rw-r--r-- | 19.6 KB |
kprobes.c | -rw-r--r-- | 62.6 KB |
ksysfs.c | -rw-r--r-- | 6.3 KB |
kthread.c | -rw-r--r-- | 32.1 KB |
latencytop.c | -rw-r--r-- | 7.9 KB |
membarrier.c | -rw-r--r-- | 2.5 KB |
memremap.c | -rw-r--r-- | 12.1 KB |
module-internal.h | -rw-r--r-- | 458 bytes |
module.c | -rw-r--r-- | 110.1 KB |
module_signing.c | -rw-r--r-- | 2.2 KB |
notifier.c | -rw-r--r-- | 16.3 KB |
nsproxy.c | -rw-r--r-- | 6.5 KB |
padata.c | -rw-r--r-- | 25.2 KB |
panic.c | -rw-r--r-- | 15.8 KB |
params.c | -rw-r--r-- | 23.1 KB |
pid.c | -rw-r--r-- | 15.1 KB |
pid_namespace.c | -rw-r--r-- | 11.8 KB |
profile.c | -rw-r--r-- | 14.8 KB |
ptrace.c | -rw-r--r-- | 32.7 KB |
range.c | -rw-r--r-- | 3.0 KB |
reboot.c | -rw-r--r-- | 13.3 KB |
relay.c | -rw-r--r-- | 32.1 KB |
resource.c | -rw-r--r-- | 39.3 KB |
seccomp.c | -rw-r--r-- | 24.1 KB |
signal.c | -rw-r--r-- | 94.8 KB |
smp.c | -rw-r--r-- | 21.0 KB |
smpboot.c | -rw-r--r-- | 13.3 KB |
smpboot.h | -rw-r--r-- | 601 bytes |
softirq.c | -rw-r--r-- | 19.0 KB |
stacktrace.c | -rw-r--r-- | 1.8 KB |
stop_machine.c | -rw-r--r-- | 17.1 KB |
sys.c | -rw-r--r-- | 58.2 KB |
sys_ni.c | -rw-r--r-- | 7.2 KB |
sysctl.c | -rw-r--r-- | 67.5 KB |
sysctl_binary.c | -rw-r--r-- | 50.9 KB |
task_work.c | -rw-r--r-- | 3.3 KB |
taskstats.c | -rw-r--r-- | 15.4 KB |
test_kprobes.c | -rw-r--r-- | 7.4 KB |
torture.c | -rw-r--r-- | 21.0 KB |
tracepoint.c | -rw-r--r-- | 14.6 KB |
tsacct.c | -rw-r--r-- | 5.1 KB |
ucount.c | -rw-r--r-- | 5.7 KB |
uid16.c | -rw-r--r-- | 5.0 KB |
up.c | -rw-r--r-- | 2.0 KB |
user-return-notifier.c | -rw-r--r-- | 1.3 KB |
user.c | -rw-r--r-- | 5.4 KB |
user_namespace.c | -rw-r--r-- | 27.4 KB |
utsname.c | -rw-r--r-- | 3.6 KB |
utsname_sysctl.c | -rw-r--r-- | 3.0 KB |
watchdog.c | -rw-r--r-- | 22.8 KB |
watchdog_hld.c | -rw-r--r-- | 6.5 KB |
workqueue.c | -rw-r--r-- | 155.0 KB |
workqueue_internal.h | -rw-r--r-- | 2.2 KB |
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