Christian Marangi cf642ee641 cpufreq: stats: Fix buffer overflow detection in trans_stats() ... [ Upstream commit ea167a7fc2426f7685c3735e104921c1a20a6d3f ] Commit 3c0897c180 ("cpufreq: Use scnprintf() for avoiding potential buffer overflow") switched from snprintf to the more secure scnprintf but never updated the exit condition for PAGE_SIZE. As the commit say and as scnprintf document, what scnprintf returns what is actually written not counting the '\0' end char. This results in the case of len exceeding the size, len set to PAGE_SIZE - 1, as it can be written at max PAGE_SIZE - 1 (as '\0' is not counted) Because of len is never set to PAGE_SIZE, the function never break early, never prints the warning and never return -EFBIG. Fix this by changing the condition to PAGE_SIZE - 1 to correctly trigger the error. Cc: 5.10+ <stable@vger.kernel.org> # 5.10+ Fixes: 3c0897c180 ("cpufreq: Use scnprintf() for avoiding potential buffer overflow") Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-11-28 16:56:32 +00:00
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Kconfig	cpufreq: Kconfig: fix documentation links	2021-04-21 19:00:42 +02:00
Kconfig.arm	cpufreq: mediatek-hw: Add support for CPUFREQ HW	2021-09-06 15:15:19 +05:30
Kconfig.powerpc	…
Kconfig.x86	cpufreq: sfi-cpufreq: Remove driver for deprecated firmware	2021-02-15 20:04:46 +01:00
Makefile	cpufreq: mediatek-hw: Add support for CPUFREQ HW	2021-09-06 15:15:19 +05:30
acpi-cpufreq.c	cpufreq: acpi: Remove acpi_cpufreq_cpu_ready()	2021-09-02 18:04:17 +02:00
amd_freq_sensitivity.c	cpufreq: amd_freq_sensitivity: Add missing pci_dev_put()	2022-12-31 13:14:03 +01:00
armada-8k-cpufreq.c	cpufreq: ap806: Add missing MODULE_DEVICE_TABLE	2020-12-07 13:02:37 +05:30
armada-37xx-cpufreq.c	cpufreq: armada-37xx: stop using 0 as NULL pointer	2023-02-01 08:27:17 +01:00
bmips-cpufreq.c	…
brcmstb-avs-cpufreq.c	cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug	2023-09-19 12:22:52 +02:00
cppc_cpufreq.c	cpufreq: CPPC: Fix performance/frequency conversion	2022-04-13 20:59:11 +02:00
cpufreq-dt-platdev.c	cpufreq: Add SM6375 to cpufreq-dt-platdev blocklist	2023-02-01 08:27:16 +01:00
cpufreq-dt.c	cpufreq: dt: Use .register_em() to register with energy model	2021-08-12 09:54:07 +05:30
cpufreq-dt.h	…
cpufreq-nforce2.c	…
cpufreq.c	cpufreq: Fix the race condition while updating the transition_task of policy	2023-09-19 12:22:49 +02:00
cpufreq_conservative.c	…
cpufreq_governor.c	cpufreq: governor: Use kobject release() method to free dbs_data	2023-02-01 08:27:29 +01:00
cpufreq_governor.h	cpufreq: governor: Use kobject release() method to free dbs_data	2023-02-01 08:27:29 +01:00
cpufreq_governor_attr_set.c	cpufreq: Move to_gov_attr_set() to cpufreq.h	2023-02-01 08:27:29 +01:00
cpufreq_ondemand.c	cpufreq: Replace deprecated CPU-hotplug functions	2021-08-04 20:16:32 +02:00
cpufreq_ondemand.h	…
cpufreq_performance.c	cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET	2020-11-10 18:31:17 +01:00
cpufreq_powersave.c	cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET	2020-11-10 18:31:17 +01:00
cpufreq_stats.c	cpufreq: stats: Fix buffer overflow detection in trans_stats()	2023-11-28 16:56:32 +00:00
cpufreq_userspace.c	…
davinci-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
e_powersaver.c	…
elanfreq.c	…
freq_table.c	cpufreq: Fix scaling_{available,boost}_frequencies_show() comments	2021-03-26 17:43:48 +01:00
gx-suspmod.c	…
highbank-cpufreq.c	cpufreq: highbank: Add missing MODULE_DEVICE_TABLE	2020-12-07 13:02:37 +05:30
ia64-acpi-cpufreq.c	ia64: fix format string for ia64-acpi-cpu-freq	2021-03-19 17:26:20 +01:00
imx-cpufreq-dt.c	…
imx6q-cpufreq.c	cpufreq: imx6q: Use .register_em() to register with energy model	2021-08-12 09:54:07 +05:30
intel_pstate.c	cpufreq: intel_pstate: Drop ACPI _PSS states table patching	2023-08-03 10:22:47 +02:00
kirkwood-cpufreq.c	…
longhaul.c	cpufreq: Fix fall-through warning for Clang	2021-07-13 11:53:07 -05:00
longhaul.h	…
longrun.c	…
loongson1-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
loongson2_cpufreq.c	cpufreq: loongson2: Remove unused linux/sched.h headers	2021-06-07 17:43:52 +02:00
maple-cpufreq.c	…
mediatek-cpufreq-hw.c	cpufreq: mediatek-hw: Add support for CPUFREQ HW	2021-09-06 15:15:19 +05:30
mediatek-cpufreq.c	cpufreq: mediatek: Unregister platform device on exit	2022-06-09 10:23:14 +02:00
mvebu-cpufreq.c	…
omap-cpufreq.c	cpufreq: omap: Use .register_em() to register with energy model	2021-08-12 09:54:07 +05:30
p4-clockmod.c	…
pasemi-cpufreq.c	…
pcc-cpufreq.c	…
pmac32-cpufreq.c	cpufreq: pmac32-cpufreq: Fix refcount leak bug	2022-07-21 21:24:34 +02:00
pmac64-cpufreq.c	…
powernow-k6.c	…
powernow-k7.c	…
powernow-k7.h	…
powernow-k8.c	cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit()	2023-09-19 12:22:32 +02:00
powernow-k8.h	…
powernv-cpufreq.c	powerpc updates for 5.15	2021-09-03 11:22:50 -07:00
ppc_cbe_cpufreq.c	…
ppc_cbe_cpufreq.h	…
ppc_cbe_cpufreq_pervasive.c	…
ppc_cbe_cpufreq_pmi.c	…
pxa2xx-cpufreq.c	…
pxa3xx-cpufreq.c	…
qcom-cpufreq-hw.c	cpufreq: qcom-hw: Fix memory leak in qcom_cpufreq_hw_read_lut()	2022-12-31 13:14:01 +01:00
qcom-cpufreq-nvmem.c	cpufreq: qcom: fix memory leak in error path	2022-10-29 10:12:54 +02:00
qoriq-cpufreq.c	drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.c	2022-07-07 17:53:33 +02:00
raspberrypi-cpufreq.c	…
s3c24xx-cpufreq-debugfs.c	…
s3c24xx-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
s3c64xx-cpufreq.c	…
s3c2410-cpufreq.c	…
s3c2412-cpufreq.c	…
s3c2416-cpufreq.c	…
s3c2440-cpufreq.c	…
s5pv210-cpufreq.c	cpufreq: Rudimentary typos fix in the file s5pv210-cpufreq.c	2021-03-22 08:55:41 +05:30
sa1100-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
sa1110-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
sc520_freq.c	cpufreq: sc520_freq: add 'fallthrough' to one case	2021-05-21 18:52:13 +02:00
scmi-cpufreq.c	cpufreq: scmi: Use .register_em() to register with energy model	2021-08-30 10:43:00 +05:30
scpi-cpufreq.c	cpufreq: scpi: Use .register_em() to register with energy model	2021-08-30 10:42:45 +05:30
sh-cpufreq.c	cpufreq: sh: Remove sh_cpufreq_cpu_ready()	2021-09-02 18:04:17 +02:00
sparc-us2e-cpufreq.c	…
sparc-us3-cpufreq.c	…
spear-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
speedstep-centrino.c	…
speedstep-ich.c	…
speedstep-lib.c	cpufreq: speedstep: remove unneeded semicolon	2020-10-28 18:04:07 +01:00
speedstep-lib.h	…
speedstep-smi.c	…
sti-cpufreq.c	cpufreq: st: Add missing MODULE_DEVICE_TABLE	2020-12-07 13:02:37 +05:30
sun50i-cpufreq-nvmem.c	cpufreq: fix memory leak in sun50i_cpufreq_nvmem_probe	2022-05-09 09:14:36 +02:00
tegra20-cpufreq.c	cpufreq: tegra20: Use resource-managed API	2021-01-18 12:02:53 +05:30
tegra124-cpufreq.c	…
tegra186-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
tegra194-cpufreq.c	cpufreq: Remove CPUFREQ_STICKY flag	2021-02-04 19:23:20 +01:00
ti-cpufreq.c	…
vexpress-spc-cpufreq.c	cpufreq: vexpress: Drop unused variable	2021-09-16 11:29:27 -07:00