[linux-next:master 3984/6263] drivers/media/i2c/imx678.c:905 imx678_write_common() error: buffer overflow 'link_freqs_reg_value' 8 <= 64

BCC: [email protected]
CC: [email protected]
TO: Jai Luthra <[email protected]>
CC: Sakari Ailus <[email protected]>
CC: Tarang Raval <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   cc2b5f627e8ccbae1188ef2d8be3e451d7f933a5
commit: bf40cc53b1e00c312046f6dd88e9054bc91865af [3984/6263] media: i2c: imx678: Add driver for Sony IMX678
:::::: branch date: 9 hours ago
:::::: commit date: 6 days ago
config: loongarch-randconfig-r073-20260714 (https://download.01.org/0day-ci/archive/20260715/[email protected]/config)
compiler: loongarch64-linux-gcc (GCC) 16.1.0
smatch: v0.5.0-9185-gbcc58b9c

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 <[email protected]>
| Reported-by: Dan Carpenter <[email protected]>
| Closes: https://lore.kernel.org/r/[email protected]/

New smatch warnings:
drivers/media/i2c/imx678.c:905 imx678_write_common() error: buffer overflow 'link_freqs_reg_value' 8 <= 64
drivers/media/i2c/imx678.c:1152 imx678_init_controls() error: buffer overflow 'min_hmax_4lane' 8 <= 64

Old smatch warnings:
arch/loongarch/include/asm/atomic.h:51 arch_atomic_fetch_add_unless() warn: inconsistent indenting

vim +/link_freqs_reg_value +905 drivers/media/i2c/imx678.c

bf40cc53b1e00c Jai Luthra 2026-07-03  895  
bf40cc53b1e00c Jai Luthra 2026-07-03  896  static int imx678_write_common(struct imx678 *imx678)
bf40cc53b1e00c Jai Luthra 2026-07-03  897  {
bf40cc53b1e00c Jai Luthra 2026-07-03  898  	int ret = 0;
bf40cc53b1e00c Jai Luthra 2026-07-03  899  
bf40cc53b1e00c Jai Luthra 2026-07-03  900  	cci_multi_reg_write(imx678->cci, common_regs, ARRAY_SIZE(common_regs),
bf40cc53b1e00c Jai Luthra 2026-07-03  901  			    &ret);
bf40cc53b1e00c Jai Luthra 2026-07-03  902  
bf40cc53b1e00c Jai Luthra 2026-07-03  903  	cci_write(imx678->cci, IMX678_REG_INCK_SEL, imx678->inck_sel_val, &ret);
bf40cc53b1e00c Jai Luthra 2026-07-03  904  	cci_write(imx678->cci, IMX678_REG_DATARATE_SEL,
bf40cc53b1e00c Jai Luthra 2026-07-03 @905  		  link_freqs_reg_value[__ffs(imx678->link_freq_bitmap)], &ret);
bf40cc53b1e00c Jai Luthra 2026-07-03  906  	cci_write(imx678->cci, IMX678_REG_LANEMODE, imx678->lane_mode, &ret);
bf40cc53b1e00c Jai Luthra 2026-07-03  907  
bf40cc53b1e00c Jai Luthra 2026-07-03  908  	cci_write(imx678->cci, IMX678_REG_INTERFACE_SEL, IMX678_INTERFACE_2L_4L,
bf40cc53b1e00c Jai Luthra 2026-07-03  909  		  &ret);
bf40cc53b1e00c Jai Luthra 2026-07-03  910  
bf40cc53b1e00c Jai Luthra 2026-07-03  911  	return ret;
bf40cc53b1e00c Jai Luthra 2026-07-03  912  }
bf40cc53b1e00c Jai Luthra 2026-07-03  913  

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki