The following kernel warning noticed on arm KASAN enabled config while booting on TI beagleboard x15 device.
[ 32.127451] BUG: KASAN: global-out-of-bounds in soc_device_match+0x64/0xe4 [ 32.127485] Read of size 4 at addr c21701f8 by task swapper/0/1 [ 32.127508] [ 32.127549] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 5.10.0-rc3-next-20201110 #2 [ 32.127577] Hardware name: Generic DRA74X (Flattened Device Tree) [ 32.127604] Backtrace: [ 32.127670] [<c199f710>] (dump_backtrace) from [<c199fb94>] (show_stack+0x20/0x24) [ 32.127717] r9:00000080 r8:c4208000 r7:c3023060 r6:40000093 r5:00000000 r4:c3023060 [ 32.127766] [<c199fb74>] (show_stack) from [<c19a7ad0>] (dump_stack+0xe8/0x10c) [ 32.127824] [<c19a79e8>] (dump_stack) from [<c05e0290>] (print_address_description.constprop.0+0x3c/0x4b0) [ 32.127871] r10:00000030 r9:c5da4010 r8:c5da4000 r7:00000000 r6:c0fd5c20 r5:eebf33c0 [ 32.127903] r4:c21701f8 r3:eebf33c4 [ 32.127958] [<c05e0254>] (print_address_description.constprop.0) from [<c05e0920>] (kasan_report+0x160/0x17c) [ 32.128000] r8:c5da4000 r7:00000000 r6:c0fd5c20 r5:00000001 r4:c21701f8 [ 32.128053] [<c05e07c0>] (kasan_report) from [<c05e0c68>] (__asan_load4+0x6c/0x9c) [ 32.128093] r7:c3c3ede0 r6:c354dea0 r5:c0fd5b88 r4:c21701f8 [ 32.128144] [<c05e0bfc>] (__asan_load4) from [<c0fd5c20>] (soc_device_match+0x64/0xe4) [ 32.128197] [<c0fd5bbc>] (soc_device_match) from [<c0e2b4a8>] (omap8250_probe+0x628/0x75c) [ 32.128236] r7:b7841730 r6:c6db2c4e r5:00000001 r4:c6db2c40 [ 32.128290] [<c0e2ae80>] (omap8250_probe) from [<c0f9889c>] (platform_drv_probe+0x70/0xc8) [ 32.128335] r10:c5da4044 r9:c5da4048 r8:c34ff834 r7:c3c3e240 r6:c34ff834 r5:00000000 [ 32.128363] r4:c5da4010 [ 32.128413] [<c0f9882c>] (platform_drv_probe) from [<c0f94924>] (really_probe+0x184/0x72c) [ 32.128452] r7:c3c3e240 r6:00000000 r5:c3c3e1c0 r4:c5da4010 [ 32.128499] [<c0f947a0>] (really_probe) from [<c0f9515c>] (driver_probe_device+0xa4/0x270) [ 32.128544] r10:c34ff834 r9:c416fa58 r8:c379e840 r7:c5d75a00 r6:c5da4034 r5:c37c01c0 [ 32.128572] r4:c5da4010 [ 32.128620] [<c0f950b8>] (driver_probe_device) from [<c0f956ac>] (device_driver_attach+0x94/0x9c) [ 32.128665] r10:00000000 r9:c416fa58 r8:c0f956b4 r7:c5d75a00 r6:c5da4034 r5:c34ff834 [ 32.128693] r4:c5da4010 [ 32.128741] [<c0f95618>] (device_driver_attach) from [<c0f95798>] (__driver_attach+0xe4/0x19c) [ 32.128780] r7:c34ff834 r6:c5da4010 r5:c34ff834 r4:00000000 [ 32.128826] [<c0f956b4>] (__driver_attach) from [<c0f917e4>] (bus_for_each_dev+0x100/0x154) [ 32.128865] r7:c34ff834 r6:b78417a4 r5:c420bd40 r4:c5d75a34 [ 32.128910] [<c0f916e4>] (bus_for_each_dev) from [<c0f93f28>] (driver_attach+0x38/0x3c) [ 32.128955] r9:c34ff87c r8:c416fa00 r7:c3541a70 r6:c3541a20 r5:c6db4f00 r4:c34ff834 [ 32.129001] [<c0f93ef0>] (driver_attach) from [<c0f93470>] (bus_add_driver+0x21c/0x2dc) [ 32.129034] r5:c6db4f00 r4:c34ff834 [ 32.129080] [<c0f93254>] (bus_add_driver) from [<c0f96874>] (driver_register+0xdc/0x1b0) [ 32.129125] r10:00000000 r9:c2b00468 r8:c378a0c0 r7:c2170360 r6:c34ff838 r5:c3541a20 [ 32.129153] r4:c34ff834 [ 32.129202] [<c0f96798>] (driver_register) from [<c0f987c8>] (__platform_driver_register+0x7c/0x84) [ 32.129241] r7:ffffc000 r6:c2bc509c r5:00000000 r4:c34ff820 [ 32.129300] [<c0f9874c>] (__platform_driver_register) from [<c2bc50c0>] (omap8250_platform_driver_init+0x24/0x28) [ 32.129333] r5:c420bf20 r4:b78417d0 [ 32.129387] [<c2bc509c>] (omap8250_platform_driver_init) from [<c030370c>] (do_one_initcall+0xc4/0x400) [ 32.129437] [<c0303648>] (do_one_initcall) from [<c2b015e8>] (kernel_init_freeable+0x214/0x268) [ 32.129482] r10:c2d128a8 r9:c2b00468 r8:c2c50834 r7:c2c50854 r6:c2a55ac8 r5:00000007 [ 32.129511] r4:c425a700 [ 32.129563] [<c2b013d4>] (kernel_init_freeable) from [<c19bfd1c>] (kernel_init+0x18/0x140) [ 32.129607] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c19bfd04 [ 32.129635] r4:00000000 [ 32.129684] [<c19bfd04>] (kernel_init) from [<c030017c>] (ret_from_fork+0x14/0x38) [ 32.129715] Exception stack(0xc420bfb0 to 0xc420bff8) [ 32.129753] bfa0: 00000000 00000000 00000000 00000000 [ 32.129798] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 32.129839] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 32.129872] r5:c19bfd04 r4:00000000 [ 32.129894] [ 32.129917] The buggy address belongs to the variable: [ 32.129957] k3_soc_devices+0x38/0x1e0 [ 32.129981] The buggy address belongs to the page: [ 32.130018] page:(ptrval) refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0x82170 [ 32.130051] flags: 0x1000(reserved) [ 32.130104] raw: 00001000 eebf33c4 eebf33c4 00000000 00000000 00000000 ffffffff 00000001 [ 32.130133] raw: 00000000 [ 32.130159] page dumped because: kasan: bad access detected [ 32.130182] [ 32.130205] Memory state around the buggy address: [ 32.130239] c2170080: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 00 05 f9 f9 [ 32.130272] c2170100: f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 f9 f9 f9 f9 [ 32.130306] >c2170180: 00 02 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 32.130331] ^ [ 32.130364] c2170200: f9 f9 f9 f9 00 00 00 06 f9 f9 f9 f9 00 00 00 02 [ 32.130397] c2170280: f9 f9 f9 f9 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9 [ 32.130422] ================================================================== [ 32.130446] Disabling lock debugging due to kernel taint
metadata: git branch: master git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next git describe: next-20201110 make_kernelversion: 5.10.0-rc3 build : https://builds.tuxbuild.com/1k5bYasxkHF7omMh7mjtxjRtkMe/
Full log: https://lkft.validation.linaro.org/scheduler/job/1927838#L2190
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