Date
July 8, 2025, 7:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.557083] ================================================================== [ 21.557143] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 21.557197] Read of size 1 at addr ffff800080a57b4a by task kunit_try_catch/253 [ 21.557248] [ 21.557278] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 21.557360] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.557387] Hardware name: linux,dummy-virt (DT) [ 21.557419] Call trace: [ 21.557443] show_stack+0x20/0x38 (C) [ 21.557491] dump_stack_lvl+0x8c/0xd0 [ 21.557538] print_report+0x310/0x608 [ 21.557586] kasan_report+0xdc/0x128 [ 21.557630] __asan_report_load1_noabort+0x20/0x30 [ 21.557683] kasan_alloca_oob_right+0x2dc/0x340 [ 21.557857] kunit_try_run_case+0x170/0x3f0 [ 21.557915] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.559337] kthread+0x328/0x630 [ 21.559526] ret_from_fork+0x10/0x20 [ 21.559683] [ 21.559740] The buggy address belongs to stack of task kunit_try_catch/253 [ 21.559820] [ 21.559847] The buggy address belongs to the virtual mapping at [ 21.559847] [ffff800080a50000, ffff800080a59000) created by: [ 21.559847] kernel_clone+0x150/0x7a8 [ 21.560342] [ 21.560379] The buggy address belongs to the physical page: [ 21.560656] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xfff00000c6481948 pfn:0x106481 [ 21.560961] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.561366] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 21.561461] raw: fff00000c6481948 0000000000000000 00000001ffffffff 0000000000000000 [ 21.561562] page dumped because: kasan: bad access detected [ 21.561687] [ 21.561707] Memory state around the buggy address: [ 21.562418] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.562522] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.562649] >ffff800080a57b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 21.562766] ^ [ 21.562840] ffff800080a57b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 21.562947] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 21.563123] ==================================================================
[ 14.871393] ================================================================== [ 14.872709] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.873053] Read of size 1 at addr ffff88810398fc4a by task kunit_try_catch/270 [ 14.873767] [ 14.874023] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.874309] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.874324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.874347] Call Trace: [ 14.874361] <TASK> [ 14.874378] dump_stack_lvl+0x73/0xb0 [ 14.874408] print_report+0xd1/0x650 [ 14.874431] ? __virt_addr_valid+0x1db/0x2d0 [ 14.874452] ? kasan_alloca_oob_right+0x329/0x390 [ 14.874474] ? kasan_addr_to_slab+0x11/0xa0 [ 14.874494] ? kasan_alloca_oob_right+0x329/0x390 [ 14.874528] kasan_report+0x141/0x180 [ 14.874549] ? kasan_alloca_oob_right+0x329/0x390 [ 14.874576] __asan_report_load1_noabort+0x18/0x20 [ 14.874599] kasan_alloca_oob_right+0x329/0x390 [ 14.874622] ? finish_task_switch.isra.0+0x153/0x700 [ 14.874644] ? out_of_line_wait_on_bit_timeout+0x7e/0x190 [ 14.874669] ? trace_hardirqs_on+0x37/0xe0 [ 14.874693] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.874715] ? __kasan_check_write+0x18/0x20 [ 14.874732] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.874757] ? trace_hardirqs_on+0x37/0xe0 [ 14.874778] ? __pfx_read_tsc+0x10/0x10 [ 14.874799] ? ktime_get_ts64+0x86/0x230 [ 14.874822] kunit_try_run_case+0x1a5/0x480 [ 14.874846] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.874871] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.874893] ? __kthread_parkme+0x82/0x180 [ 14.874913] ? preempt_count_sub+0x50/0x80 [ 14.874935] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.874958] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.874980] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.875003] kthread+0x337/0x6f0 [ 14.875021] ? trace_preempt_on+0x20/0xc0 [ 14.875056] ? __pfx_kthread+0x10/0x10 [ 14.875113] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.875134] ? calculate_sigpending+0x7b/0xa0 [ 14.875157] ? __pfx_kthread+0x10/0x10 [ 14.875178] ret_from_fork+0x116/0x1d0 [ 14.875196] ? __pfx_kthread+0x10/0x10 [ 14.875216] ret_from_fork_asm+0x1a/0x30 [ 14.875248] </TASK> [ 14.875259] [ 14.888367] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.888884] [ 14.889149] The buggy address belongs to the physical page: [ 14.889690] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10398f [ 14.890239] flags: 0x200000000000000(node=0|zone=2) [ 14.890624] raw: 0200000000000000 ffffea00040e63c8 ffffea00040e63c8 0000000000000000 [ 14.891153] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.891476] page dumped because: kasan: bad access detected [ 14.891891] [ 14.892123] Memory state around the buggy address: [ 14.892684] ffff88810398fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.893287] ffff88810398fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.893786] >ffff88810398fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.894330] ^ [ 14.894766] ffff88810398fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.895278] ffff88810398fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.895852] ==================================================================