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| author | tuhaowen <tuhaowen@uniontech.com> | 2024-07-08 16:04:30 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-10 14:59:45 +0200 |
| commit | ab11dac93d2d568d151b1918d7b84c2d02bacbd5 (patch) | |
| tree | ab917a170cdaeeffaf541844527fdc4208b06abb /drivers/macintosh/windfarm_cpufreq_clamp.c | |
| parent | feb1f0cba17a05c145cbe9dcf6c4736990e106d7 (diff) | |
| download | lwn-ab11dac93d2d568d151b1918d7b84c2d02bacbd5.tar.gz lwn-ab11dac93d2d568d151b1918d7b84c2d02bacbd5.zip | |
dev/parport: fix the array out-of-bounds risk
Fixed array out-of-bounds issues caused by sprintf
by replacing it with snprintf for safer data copying,
ensuring the destination buffer is not overflowed.
Below is the stack trace I encountered during the actual issue:
[ 66.575408s] [pid:5118,cpu4,QThread,4]Kernel panic - not syncing: stack-protector:
Kernel stack is corrupted in: do_hardware_base_addr+0xcc/0xd0 [parport]
[ 66.575408s] [pid:5118,cpu4,QThread,5]CPU: 4 PID: 5118 Comm:
QThread Tainted: G S W O 5.10.97-arm64-desktop #7100.57021.2
[ 66.575439s] [pid:5118,cpu4,QThread,6]TGID: 5087 Comm: EFileApp
[ 66.575439s] [pid:5118,cpu4,QThread,7]Hardware name: HUAWEI HUAWEI QingYun
PGUX-W515x-B081/SP1PANGUXM, BIOS 1.00.07 04/29/2024
[ 66.575439s] [pid:5118,cpu4,QThread,8]Call trace:
[ 66.575469s] [pid:5118,cpu4,QThread,9] dump_backtrace+0x0/0x1c0
[ 66.575469s] [pid:5118,cpu4,QThread,0] show_stack+0x14/0x20
[ 66.575469s] [pid:5118,cpu4,QThread,1] dump_stack+0xd4/0x10c
[ 66.575500s] [pid:5118,cpu4,QThread,2] panic+0x1d8/0x3bc
[ 66.575500s] [pid:5118,cpu4,QThread,3] __stack_chk_fail+0x2c/0x38
[ 66.575500s] [pid:5118,cpu4,QThread,4] do_hardware_base_addr+0xcc/0xd0 [parport]
Signed-off-by: tuhaowen <tuhaowen@uniontech.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20240708080430.8221-1-tuhaowen@uniontech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/macintosh/windfarm_cpufreq_clamp.c')
0 files changed, 0 insertions, 0 deletions