Date
July 12, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.190231] ================================================================== [ 22.191030] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 22.191275] Read of size 1 at addr ffff800080ad7b5f by task kunit_try_catch/252 [ 22.191490] [ 22.191594] CPU: 1 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 22.191883] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.191954] Hardware name: linux,dummy-virt (DT) [ 22.192037] Call trace: [ 22.192090] show_stack+0x20/0x38 (C) [ 22.192212] dump_stack_lvl+0x8c/0xd0 [ 22.192902] print_report+0x310/0x608 [ 22.193073] kasan_report+0xdc/0x128 [ 22.193484] __asan_report_load1_noabort+0x20/0x30 [ 22.194053] kasan_alloca_oob_left+0x2b8/0x310 [ 22.194214] kunit_try_run_case+0x170/0x3f0 [ 22.194328] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.194469] kthread+0x328/0x630 [ 22.194588] ret_from_fork+0x10/0x20 [ 22.194739] [ 22.194795] The buggy address belongs to stack of task kunit_try_catch/252 [ 22.195272] [ 22.195334] The buggy address belongs to the virtual mapping at [ 22.195334] [ffff800080ad0000, ffff800080ad9000) created by: [ 22.195334] kernel_clone+0x150/0x7a8 [ 22.195570] [ 22.195627] The buggy address belongs to the physical page: [ 22.195711] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10592d [ 22.195868] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.196038] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 22.196158] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 22.196269] page dumped because: kasan: bad access detected [ 22.196353] [ 22.196398] Memory state around the buggy address: [ 22.196483] ffff800080ad7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.196594] ffff800080ad7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.196700] >ffff800080ad7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 22.196804] ^ [ 22.196917] ffff800080ad7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 22.197021] ffff800080ad7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 22.197121] ==================================================================
[ 14.472958] ================================================================== [ 14.473402] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.473993] Read of size 1 at addr ffff888103bb7c3f by task kunit_try_catch/269 [ 14.474412] [ 14.474553] CPU: 0 UID: 0 PID: 269 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.474597] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.474619] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.474639] Call Trace: [ 14.474650] <TASK> [ 14.474666] dump_stack_lvl+0x73/0xb0 [ 14.474697] print_report+0xd1/0x650 [ 14.474773] ? __virt_addr_valid+0x1db/0x2d0 [ 14.474798] ? kasan_alloca_oob_left+0x320/0x380 [ 14.474897] ? kasan_addr_to_slab+0x11/0xa0 [ 14.474918] ? kasan_alloca_oob_left+0x320/0x380 [ 14.474975] kasan_report+0x141/0x180 [ 14.474997] ? kasan_alloca_oob_left+0x320/0x380 [ 14.475036] __asan_report_load1_noabort+0x18/0x20 [ 14.475061] kasan_alloca_oob_left+0x320/0x380 [ 14.475111] ? irqentry_exit+0x2a/0x60 [ 14.475134] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 14.475159] ? trace_hardirqs_on+0x37/0xe0 [ 14.475197] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.475225] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.475253] kunit_try_run_case+0x1a5/0x480 [ 14.475276] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.475301] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.475324] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.475348] ? __kthread_parkme+0x82/0x180 [ 14.475369] ? preempt_count_sub+0x50/0x80 [ 14.475392] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.475417] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.475442] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.475469] kthread+0x337/0x6f0 [ 14.475487] ? trace_preempt_on+0x20/0xc0 [ 14.475510] ? __pfx_kthread+0x10/0x10 [ 14.475531] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.475553] ? calculate_sigpending+0x7b/0xa0 [ 14.475577] ? __pfx_kthread+0x10/0x10 [ 14.475599] ret_from_fork+0x116/0x1d0 [ 14.475618] ? __pfx_kthread+0x10/0x10 [ 14.475639] ret_from_fork_asm+0x1a/0x30 [ 14.475688] </TASK> [ 14.475699] [ 14.484741] The buggy address belongs to stack of task kunit_try_catch/269 [ 14.485148] [ 14.485265] The buggy address belongs to the physical page: [ 14.485556] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103bb7 [ 14.485990] flags: 0x200000000000000(node=0|zone=2) [ 14.486285] raw: 0200000000000000 ffffea00040eedc8 ffffea00040eedc8 0000000000000000 [ 14.486988] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.487338] page dumped because: kasan: bad access detected [ 14.487614] [ 14.487812] Memory state around the buggy address: [ 14.488067] ffff888103bb7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.488397] ffff888103bb7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.488623] >ffff888103bb7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.489207] ^ [ 14.489428] ffff888103bb7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.489845] ffff888103bb7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.490199] ==================================================================