Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.430996] ================================================================== [ 20.431059] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 20.431354] Read of size 1 at addr ffff800080997b4a by task kunit_try_catch/253 [ 20.431426] [ 20.431859] CPU: 1 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.431963] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.432253] Hardware name: linux,dummy-virt (DT) [ 20.432350] Call trace: [ 20.432462] show_stack+0x20/0x38 (C) [ 20.432629] dump_stack_lvl+0x8c/0xd0 [ 20.432846] print_report+0x310/0x608 [ 20.432972] kasan_report+0xdc/0x128 [ 20.433028] __asan_report_load1_noabort+0x20/0x30 [ 20.433080] kasan_alloca_oob_right+0x2dc/0x340 [ 20.433135] kunit_try_run_case+0x170/0x3f0 [ 20.433352] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.433423] kthread+0x328/0x630 [ 20.433660] ret_from_fork+0x10/0x20 [ 20.433904] [ 20.434270] The buggy address belongs to stack of task kunit_try_catch/253 [ 20.434443] [ 20.434532] The buggy address belongs to the virtual mapping at [ 20.434532] [ffff800080990000, ffff800080999000) created by: [ 20.434532] kernel_clone+0x150/0x7a8 [ 20.434739] [ 20.434764] The buggy address belongs to the physical page: [ 20.434799] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106437 [ 20.435295] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.435649] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.435812] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.436219] page dumped because: kasan: bad access detected [ 20.436267] [ 20.436301] Memory state around the buggy address: [ 20.436344] ffff800080997a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.436413] ffff800080997a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.436513] >ffff800080997b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.436556] ^ [ 20.436594] ffff800080997b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 20.436648] ffff800080997c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.436697] ==================================================================
[ 13.477313] ================================================================== [ 13.477976] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.478357] Read of size 1 at addr ffff8881039ffc4a by task kunit_try_catch/270 [ 13.478741] [ 13.478886] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.478961] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.478974] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.478997] Call Trace: [ 13.479010] <TASK> [ 13.479028] dump_stack_lvl+0x73/0xb0 [ 13.479060] print_report+0xd1/0x650 [ 13.479084] ? __virt_addr_valid+0x1db/0x2d0 [ 13.479114] ? kasan_alloca_oob_right+0x329/0x390 [ 13.479137] ? kasan_addr_to_slab+0x11/0xa0 [ 13.479178] ? kasan_alloca_oob_right+0x329/0x390 [ 13.479201] kasan_report+0x141/0x180 [ 13.479223] ? kasan_alloca_oob_right+0x329/0x390 [ 13.479250] __asan_report_load1_noabort+0x18/0x20 [ 13.479275] kasan_alloca_oob_right+0x329/0x390 [ 13.479299] ? finish_task_switch.isra.0+0x153/0x700 [ 13.479322] ? ww_mutex_unlock+0x6e/0x150 [ 13.479345] ? trace_hardirqs_on+0x37/0xe0 [ 13.479371] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.479396] ? __schedule+0x10cc/0x2b60 [ 13.479435] ? __pfx_read_tsc+0x10/0x10 [ 13.479457] ? ktime_get_ts64+0x86/0x230 [ 13.479497] kunit_try_run_case+0x1a5/0x480 [ 13.479523] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.479545] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.479570] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.479593] ? __kthread_parkme+0x82/0x180 [ 13.479615] ? preempt_count_sub+0x50/0x80 [ 13.479638] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.479662] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.479685] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.479708] kthread+0x337/0x6f0 [ 13.479728] ? trace_preempt_on+0x20/0xc0 [ 13.479750] ? __pfx_kthread+0x10/0x10 [ 13.479771] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.479792] ? calculate_sigpending+0x7b/0xa0 [ 13.479816] ? __pfx_kthread+0x10/0x10 [ 13.479838] ret_from_fork+0x116/0x1d0 [ 13.479856] ? __pfx_kthread+0x10/0x10 [ 13.479876] ret_from_fork_asm+0x1a/0x30 [ 13.479908] </TASK> [ 13.479920] [ 13.487028] The buggy address belongs to stack of task kunit_try_catch/270 [ 13.487689] [ 13.487776] The buggy address belongs to the physical page: [ 13.488020] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039ff [ 13.488407] flags: 0x200000000000000(node=0|zone=2) [ 13.488618] raw: 0200000000000000 ffffea00040e7fc8 ffffea00040e7fc8 0000000000000000 [ 13.488947] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.489410] page dumped because: kasan: bad access detected [ 13.489579] [ 13.489663] Memory state around the buggy address: [ 13.489892] ffff8881039ffb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.490183] ffff8881039ffb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.490392] >ffff8881039ffc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.490712] ^ [ 13.490985] ffff8881039ffc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.491272] ffff8881039ffd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.491657] ==================================================================