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Linus Torvalds 6ba0d2e4fc Fix sysfs module section output overflow 
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Merge tag 'kallsyms_show_value-fix-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull sysfs module section fix from Kees Cook:
 "Fix sysfs module section output overflow.

  About a month after my kallsyms_show_value() refactoring landed, 0day
  noticed that there was a path through the kernfs binattr read handlers
  that did not have PAGE_SIZEd buffers, and the module "sections" read
  handler made a bad assumption about this, resulting in it stomping on
  memory when reached through small-sized splice() calls.

  I've added a set of tests to find these kinds of regressions more
  quickly in the future as well"

Sefltests-acked-by: Shuah Khan <skhan@linuxfoundation.org>

* tag 'kallsyms_show_value-fix-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  selftests: splice: Check behavior of full and short splices
  module: Correctly truncate sysfs sections output
2020-08-07 13:24:58 -07:00
..
android SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
arm64 kselftest: arm64: Remove redundant clean target 2020-06-24 14:25:59 +01:00
bpf Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-08-03 18:27:40 -07:00
breakpoints selftests: breakpoints: do not use ksft_exit_skip after ksft_set_plan 2020-07-06 15:47:48 -06:00
capabilities .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
cgroup kselftests: cgroup: add kernel memory accounting tests 2020-08-07 11:33:25 -07:00
clone3 linux-kselftest-5.9-rc1 2020-08-05 10:28:25 -07:00
core tests: add CLOSE_RANGE_UNSHARE tests 2020-06-17 00:07:38 +02:00
cpu-hotplug selftests: cpu-hotplug: fix case where CPUs offline > CPUs present 2019-01-25 14:57:45 -07:00
cpufreq
dmabuf-heaps kselftests: dmabuf-heaps: Fix confused return value on expected error testing 2020-05-08 09:40:58 -06:00
drivers selftests: mlxsw: RED: Test offload of trapping on RED qevents 2020-08-03 18:06:46 -07:00
efivarfs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
exec linux-kselftest-5.8-rc1 2020-06-09 10:03:12 -07:00
filesystems selftests/binderfs: Fix harness API usage 2020-07-06 15:59:16 -06:00
firmware selftest/firmware: Add selftest timeout in settings 2020-07-25 12:05:20 +02:00
fpu selftests/fpu: Add an FPU selftest 2020-06-29 10:02:23 +02:00
ftrace selftests/ftrace: Support ":README" suffix for requires 2020-06-16 10:42:47 -06:00
futex .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
gpio selftests: add build/cross-build dependency check script 2020-04-23 17:23:20 -06:00
ia64 .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
intel_pstate selftests: add build/cross-build dependency check script 2020-04-23 17:23:20 -06:00
ipc selftests/ipc: Fix test failure seen after initial test run 2020-04-14 10:24:28 -06:00
ir .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
kcmp .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
kexec sefltest/ima: support appended signatures (modsig) 2019-08-29 12:45:30 -04:00
kmod selftests: kmod: Add module address visibility test 2020-07-17 13:36:51 -06:00
kselftest Driver core changes for 5.9-rc1 2020-08-05 11:52:17 -07:00
kvm KVM: nVMX: check for invalid hdr.vmx.flags 2020-07-27 09:04:50 -04:00
lib lib: make a test module with set/clear bit 2020-06-04 19:06:25 -07:00
livepatch selftests/livepatch: adopt to newer sysctl error format 2020-07-15 08:54:35 +02:00
lkdtm lkdtm: Make arch-specific tests always available 2020-06-29 18:41:39 +02:00
locking
media_tests .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
membarrier .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
memfd selftests: add build/cross-build dependency check script 2020-04-23 17:23:20 -06:00
memory-hotplug
mincore selftests: add mincore() tests 2020-08-07 11:33:27 -07:00
mount .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
mqueue .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
net selftests/net: relax cpu affinity requirement in msg_zerocopy test 2020-08-05 12:25:35 -07:00
netfilter selftests: netfilter: add meta iif/oif match test 2020-08-03 12:02:22 +02:00
nsfs tools/testing: Replace zero-length array with flexible-array 2020-05-08 09:42:14 -06:00
ntb NTB: ntb_test: Fix bug when counting remote files 2020-06-05 20:02:09 -04:00
openat2 .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
pid_namespace selftests: Remove unneeded selftest API headers 2020-07-06 15:59:07 -06:00
pidfd linux-kselftest-5.9-rc1 2020-08-05 10:28:25 -07:00
powerpc selftests/powerpc: Fix pkey syscall redefinitions 2020-08-05 10:14:03 +10:00
prctl .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
proc proc: use human-readable values for hidepid 2020-04-22 10:51:22 -05:00
pstore pstore/platform: Use backend name for console registration 2020-05-30 10:34:02 -07:00
ptp testptp: add new options for perout phase and pulse width 2020-07-20 18:04:59 -07:00
ptrace SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
rcutorture Merge branches 'doc.2020.06.29a', 'fixes.2020.06.29a', 'kfree_rcu.2020.06.29a', 'rcu-tasks.2020.06.29a', 'scale.2020.06.29a', 'srcu.2020.06.29a' and 'torture.2020.06.29a' into HEAD 2020-06-29 12:03:15 -07:00
resctrl selftests/resctrl: fix spelling mistake "Errror" -> "Error" 2020-03-13 13:29:22 -06:00
rseq .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
rtc .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
safesetid .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
seccomp arch/csky patches for 5.9-rc1 2020-08-06 10:15:28 -07:00
sigaltstack selftests: sigaltstack: do not use ksft_exit_skip after ksft_set_plan 2020-07-06 15:57:15 -06:00
size .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
sparc64 .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
splice selftests: splice: Check behavior of full and short splices 2020-08-07 10:50:11 -07:00
static_keys treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
sync selftests: sync_test: do not use ksft_exit_skip after ksft_set_plan 2020-07-06 15:57:28 -06:00
sysctl linux-kselftest-5.8-rc1 2020-06-09 10:03:12 -07:00
tc-testing tc-testing: Add tdc to kselftests 2020-07-20 18:29:37 -07:00
timens selftests/timens: handle a case when alarm clocks are not supported 2020-05-22 13:29:55 -06:00
timers .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
tmpfs .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
tpm2 selftests: tpm: upgrade TPM2 tests from Python 2 to Python 3 2020-07-06 14:20:35 -06:00
uevent selftests: Remove unneeded selftest API headers 2020-07-06 15:59:07 -06:00
user treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
vDSO selftests: vdso: Add a selftest for vDSO getcpu() 2020-05-22 11:05:07 -06:00
vm hmm related patches for 5.9 2020-08-05 13:28:50 -07:00
watchdog .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
wireguard wireguard: device: avoid circular netns references 2020-06-23 14:50:34 -07:00
x86 Support for FSGSBASE. Almost 5 years after the first RFC to support it, 2020-08-04 21:16:22 -07:00
zram docs: blockdev: add it to the admin-guide 2019-07-15 11:03:01 -03:00
.gitignore SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
gen_kselftest_tar.sh selftests: introduce gen_tar Makefile target 2020-05-19 16:11:46 -06:00
kselftest.h linux-kselftest-5.9-rc1 2020-08-05 10:28:25 -07:00
kselftest_deps.sh selftests: add build/cross-build dependency check script 2020-04-23 17:23:20 -06:00
kselftest_harness.h selftests/harness: Limit step counter reporting 2020-07-17 13:56:35 -06:00
kselftest_install.sh selftests: gen_kselftest_tar.sh: Do not clobber kselftest/ 2019-11-07 14:43:27 -07:00
kselftest_module.h kselftest: Add test module framework header 2019-04-08 16:44:20 -06:00
lib.mk selftests: fix condition in run_tests 2020-07-07 14:11:31 -06:00
Makefile selftests: add mincore() tests 2020-08-07 11:33:27 -07:00