Matthew Wilcox c88a0aa7ac fs: prevent page refcount overflow in pipe_buf_get ...

commit 15fab63e1e57be9fdb5eec1bbc5916e9825e9acb upstream.

Change pipe_buf_get() to return a bool indicating whether it succeeded
in raising the refcount of the page (if the thing in the pipe is a page).
This removes another mechanism for overflowing the page refcount.  All
callers converted to handle a failure.

Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-05-04 09:15:18 +02:00

..

blktrace.c

tracing/blktrace: Fix to allow setting same value

2018-09-09 19:55:57 +02:00

bpf_trace.c

bpf: fix check of allowed specifiers in bpf_trace_printk

2018-12-17 09:28:50 +01:00

ftrace.c

kprobes: Mark ftrace mcount handler functions nokprobe

2019-04-27 09:35:38 +02:00

Kconfig

tracing: Prevent PROFILE_ALL_BRANCHES when FORTIFY_SOURCE=y

2018-02-22 15:42:13 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

power-traces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ring_buffer_benchmark.c

ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU

2017-08-02 14:23:02 -04:00

ring_buffer.c

trace: Fix preempt_enable_no_resched() abuse

2019-05-02 09:40:28 +02:00

rpm-traces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_benchmark.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_benchmark.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_branch.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_clock.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>

2017-03-02 08:42:27 +01:00

trace_entries.h

tracing: Fix missing tab for hwlat_detector print format

2018-04-29 11:33:17 +02:00

trace_event_perf.c

perf/ftrace: Fix double traces of perf on ftrace:function

2017-08-29 13:29:29 +02:00

trace_events_filter_test.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_events_filter.c

tracing: Fix regex_match_front() to not over compare the test string

2018-05-16 10:10:27 +02:00

trace_events_hist.c

tracing: Use strncpy instead of memcpy for string keys in hist triggers

2019-03-23 14:35:19 +01:00

trace_events_trigger.c

tracing: Fix memory leak in set_trigger_filter()

2018-12-21 14:13:06 +01:00

trace_events.c

tracing: Fix converting enum's from the map in trace_event_eval_update()

2018-01-23 19:58:16 +01:00

trace_export.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_functions_graph.c

tracing: Fix missing return symbol in function_graph output

2018-07-11 16:29:14 +02:00

trace_functions.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_hwlat.c

trace: make trace_hwlat timestamp y2038 safe

2017-05-08 17:15:15 -07:00

trace_irqsoff.c

clocksource: Use a plain u64 instead of cycle_t

2016-12-25 11:04:12 +01:00

trace_kdb.c

tracing: kdb: Fix ftdump to not sleep

2019-04-05 22:31:25 +02:00

trace_kprobe.c

tracing: Quiet gcc warning about maybe unused link variable

2018-08-03 07:50:21 +02:00

trace_mmiotrace.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_nop.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_output.c

tracing: Reorder display of TGID to be after PID

2018-07-17 11:39:30 +02:00

trace_output.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_printk.c

tracing: Handle NULL formats in hold_module_trace_bprintk_format()

2016-06-20 09:46:12 -04:00

trace_probe.c

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:24:42 +02:00

trace_probe.h

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:24:42 +02:00

trace_sched_switch.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_sched_wakeup.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_selftest_dynamic.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_selftest.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_seq.c

…

trace_stack.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_stat.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_stat.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_syscalls.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_uprobe.c

tracing/uprobes: Fix output for multiple string arguments

2019-02-20 10:20:53 +01:00

trace.c

fs: prevent page refcount overflow in pipe_buf_get

2019-05-04 09:15:18 +02:00

trace.h

tracing: Make the snapshot trigger work with instances

2018-06-05 11:41:56 +02:00

tracing_map.c

tracing: Fix kmemleak in tracing_map_array_free()

2017-08-24 10:05:51 -04:00

tracing_map.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00