diff options
| author | Yang Yingliang <[email protected]> | 2021-10-13 12:04:38 +0800 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2021-10-17 14:50:46 +0100 |
| commit | 2c0ad3f0cc04dec489552a21b80cd6d708bea96d (patch) | |
| tree | c53bb13c0be4f8dad79137ee1a55d5b3b33b8f1f /tools/perf/scripts/python/arm-cs-trace-disasm.py | |
| parent | 558df982d4ead9cac628153d0d7b60feae05ddc8 (diff) | |
iio: buffer: check return value of kstrdup_const()
Check return value of kstrdup_const() in iio_buffer_wrap_attr(),
or it will cause null-ptr-deref in kernfs_name_hash() when calling
device_add() as follows:
BUG: kernel NULL pointer dereference, address: 0000000000000000
RIP: 0010:strlen+0x0/0x20
Call Trace:
kernfs_name_hash+0x22/0x110
kernfs_find_ns+0x11d/0x390
kernfs_remove_by_name_ns+0x3b/0xb0
remove_files.isra.1+0x7b/0x190
internal_create_group+0x7f1/0xbb0
internal_create_groups+0xa3/0x150
device_add+0x8f0/0x2020
cdev_device_add+0xc3/0x160
__iio_device_register+0x1427/0x1b40 [industrialio]
__devm_iio_device_register+0x22/0x80 [industrialio]
adjd_s311_probe+0x195/0x200 [adjd_s311]
i2c_device_probe+0xa07/0xbb0
Reported-by: Hulk Robot <[email protected]>
Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
Signed-off-by: Yang Yingliang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/arm-cs-trace-disasm.py')
0 files changed, 0 insertions, 0 deletions