* [axboe:rw_iter 115/471] drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap)
@ 2026-03-09 18:56 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-03-09 18:56 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Jens Axboe <axboe@kernel.dk>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git rw_iter
head: 0a49759be1c3b29207758e467fdc1a90d0716d06
commit: 7dfd9f363e6d79bc842bf6e7fa86541a21142fef [115/471] drivers/hid: convert to read/write iterators
:::::: branch date: 3 days ago
:::::: commit date: 3 days ago
config: openrisc-randconfig-r071-20260307 (https://download.01.org/0day-ci/archive/20260310/202603100207.LotLQ2MK-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 15.2.0
smatch: v0.5.0-9004-gb810ac53
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202603100207.LotLQ2MK-lkp@intel.com/
smatch warnings:
drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap)
vim +/buf +50 drivers/hid/hid-picolcd_debugfs.c
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 37
7dfd9f363e6d79 Jens Axboe 2024-04-05 38 static ssize_t picolcd_debug_reset_write(struct kiocb *iocb,
7dfd9f363e6d79 Jens Axboe 2024-04-05 39 struct iov_iter *from)
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 40 {
7dfd9f363e6d79 Jens Axboe 2024-04-05 41 struct picolcd_data *data = ((struct seq_file *)iocb->ki_filp->private_data)->private;
7dfd9f363e6d79 Jens Axboe 2024-04-05 42 size_t count = iov_iter_count(from);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 43 char buf[32];
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 44 size_t cnt = min(count, sizeof(buf)-1);
7dfd9f363e6d79 Jens Axboe 2024-04-05 45 if (!copy_from_iter_full(buf, cnt, from))
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 46 return -EFAULT;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 47
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 48 while (cnt > 0 && (buf[cnt-1] == ' ' || buf[cnt-1] == '\n'))
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 49 cnt--;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 @50 buf[cnt] = '\0';
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 51 if (strcmp(buf, "all") == 0) {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 52 picolcd_reset(data->hdev);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 53 picolcd_fb_reset(data, 1);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 54 } else if (strcmp(buf, "fb") == 0) {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 55 picolcd_fb_reset(data, 1);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 56 } else {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 57 return -EINVAL;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 58 }
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 59 return count;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 60 }
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 61
:::::: The code at line 50 was first introduced by commit
:::::: fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 HID: picoLCD: split driver code
:::::: TO: Bruno Prémont <bonbons@linux-vserver.org>
:::::: CC: Jiri Kosina <jkosina@suse.cz>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread* [axboe:rw_iter 115/471] drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap)
@ 2026-03-11 6:32 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-03-11 6:32 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Jens Axboe <axboe@kernel.dk>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git rw_iter
head: 0a49759be1c3b29207758e467fdc1a90d0716d06
commit: 7dfd9f363e6d79bc842bf6e7fa86541a21142fef [115/471] drivers/hid: convert to read/write iterators
:::::: branch date: 5 days ago
:::::: commit date: 5 days ago
config: openrisc-randconfig-r071-20260307 (https://download.01.org/0day-ci/archive/20260311/202603111411.GE776lsA-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 15.2.0
smatch: v0.5.0-9004-gb810ac53
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202603111411.GE776lsA-lkp@intel.com/
smatch warnings:
drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap)
vim +/buf +50 drivers/hid/hid-picolcd_debugfs.c
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 37
7dfd9f363e6d79 Jens Axboe 2024-04-05 38 static ssize_t picolcd_debug_reset_write(struct kiocb *iocb,
7dfd9f363e6d79 Jens Axboe 2024-04-05 39 struct iov_iter *from)
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 40 {
7dfd9f363e6d79 Jens Axboe 2024-04-05 41 struct picolcd_data *data = ((struct seq_file *)iocb->ki_filp->private_data)->private;
7dfd9f363e6d79 Jens Axboe 2024-04-05 42 size_t count = iov_iter_count(from);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 43 char buf[32];
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 44 size_t cnt = min(count, sizeof(buf)-1);
7dfd9f363e6d79 Jens Axboe 2024-04-05 45 if (!copy_from_iter_full(buf, cnt, from))
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 46 return -EFAULT;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 47
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 48 while (cnt > 0 && (buf[cnt-1] == ' ' || buf[cnt-1] == '\n'))
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 49 cnt--;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 @50 buf[cnt] = '\0';
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 51 if (strcmp(buf, "all") == 0) {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 52 picolcd_reset(data->hdev);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 53 picolcd_fb_reset(data, 1);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 54 } else if (strcmp(buf, "fb") == 0) {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 55 picolcd_fb_reset(data, 1);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 56 } else {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 57 return -EINVAL;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 58 }
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 59 return count;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 60 }
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 61
:::::: The code at line 50 was first introduced by commit
:::::: fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 HID: picoLCD: split driver code
:::::: TO: Bruno Prémont <bonbons@linux-vserver.org>
:::::: CC: Jiri Kosina <jkosina@suse.cz>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread* [axboe:rw_iter 115/471] drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap)
@ 2026-03-08 11:03 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-03-08 11:03 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Jens Axboe <axboe@kernel.dk>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git rw_iter
head: 0a49759be1c3b29207758e467fdc1a90d0716d06
commit: 7dfd9f363e6d79bc842bf6e7fa86541a21142fef [115/471] drivers/hid: convert to read/write iterators
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: openrisc-randconfig-r071-20260307 (https://download.01.org/0day-ci/archive/20260308/202603081820.Q5VbZL0G-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 15.2.0
smatch: v0.5.0-9004-gb810ac53
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202603081820.Q5VbZL0G-lkp@intel.com/
smatch warnings:
drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap)
vim +/buf +50 drivers/hid/hid-picolcd_debugfs.c
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 37
7dfd9f363e6d79 Jens Axboe 2024-04-05 38 static ssize_t picolcd_debug_reset_write(struct kiocb *iocb,
7dfd9f363e6d79 Jens Axboe 2024-04-05 39 struct iov_iter *from)
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 40 {
7dfd9f363e6d79 Jens Axboe 2024-04-05 41 struct picolcd_data *data = ((struct seq_file *)iocb->ki_filp->private_data)->private;
7dfd9f363e6d79 Jens Axboe 2024-04-05 42 size_t count = iov_iter_count(from);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 43 char buf[32];
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 44 size_t cnt = min(count, sizeof(buf)-1);
7dfd9f363e6d79 Jens Axboe 2024-04-05 45 if (!copy_from_iter_full(buf, cnt, from))
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 46 return -EFAULT;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 47
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 48 while (cnt > 0 && (buf[cnt-1] == ' ' || buf[cnt-1] == '\n'))
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 49 cnt--;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 @50 buf[cnt] = '\0';
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 51 if (strcmp(buf, "all") == 0) {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 52 picolcd_reset(data->hdev);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 53 picolcd_fb_reset(data, 1);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 54 } else if (strcmp(buf, "fb") == 0) {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 55 picolcd_fb_reset(data, 1);
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 56 } else {
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 57 return -EINVAL;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 58 }
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 59 return count;
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 60 }
fabdbf2fd22fa1 Bruno Prémont 2012-07-30 61
:::::: The code at line 50 was first introduced by commit
:::::: fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 HID: picoLCD: split driver code
:::::: TO: Bruno Prémont <bonbons@linux-vserver.org>
:::::: CC: Jiri Kosina <jkosina@suse.cz>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2026-03-11 6:33 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2026-03-09 18:56 [axboe:rw_iter 115/471] drivers/hid/hid-picolcd_debugfs.c:50 picolcd_debug_reset_write() warn: potential spectre issue 'buf' [w] (local cap) kernel test robot
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2026-03-11 6:32 kernel test robot
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