Date
June 23, 2025, 1:39 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.961128] ================================================================== [ 27.961327] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 27.964712] Read of size 1 at addr ffff800080a57b5f by task kunit_try_catch/253 [ 27.965839] [ 27.966666] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT [ 27.967320] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.967681] Hardware name: linux,dummy-virt (DT) [ 27.967793] Call trace: [ 27.967862] show_stack+0x20/0x38 (C) [ 27.968001] dump_stack_lvl+0x8c/0xd0 [ 27.968284] print_report+0x310/0x608 [ 27.968625] kasan_report+0xdc/0x128 [ 27.969232] __asan_report_load1_noabort+0x20/0x30 [ 27.969606] kasan_alloca_oob_left+0x2b8/0x310 [ 27.969741] kunit_try_run_case+0x170/0x3f0 [ 27.969868] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.970000] kthread+0x328/0x630 [ 27.970117] ret_from_fork+0x10/0x20 [ 27.971524] [ 27.971632] The buggy address belongs to stack of task kunit_try_catch/253 [ 27.971808] [ 27.971878] The buggy address belongs to the virtual mapping at [ 27.971878] [ffff800080a50000, ffff800080a59000) created by: [ 27.971878] kernel_clone+0x150/0x7a8 [ 27.972321] [ 27.972469] The buggy address belongs to the physical page: [ 27.972544] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107057 [ 27.972679] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.973279] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 27.973448] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 27.973954] page dumped because: kasan: bad access detected [ 27.974053] [ 27.974336] Memory state around the buggy address: [ 27.974701] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.974861] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.975140] >ffff800080a57b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 27.975620] ^ [ 27.975723] ffff800080a57b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 27.975834] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 27.976898] ==================================================================
[ 19.969144] ================================================================== [ 19.970044] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 19.971654] Read of size 1 at addr ffff88810a78fc3f by task kunit_try_catch/272 [ 19.972881] [ 19.973112] CPU: 1 UID: 0 PID: 272 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT(voluntary) [ 19.973279] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.973322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 19.973438] Call Trace: [ 19.973510] <TASK> [ 19.973586] dump_stack_lvl+0x73/0xb0 [ 19.973690] print_report+0xd1/0x650 [ 19.973777] ? __virt_addr_valid+0x1db/0x2d0 [ 19.973932] ? kasan_alloca_oob_left+0x320/0x380 [ 19.974008] ? kasan_addr_to_slab+0x11/0xa0 [ 19.974073] ? kasan_alloca_oob_left+0x320/0x380 [ 19.974143] kasan_report+0x141/0x180 [ 19.974182] ? kasan_alloca_oob_left+0x320/0x380 [ 19.974266] __asan_report_load1_noabort+0x18/0x20 [ 19.974307] kasan_alloca_oob_left+0x320/0x380 [ 19.974346] ? finish_task_switch.isra.0+0x153/0x700 [ 19.974385] ? rwsem_down_read_slowpath+0x6be/0xb90 [ 19.974419] ? trace_hardirqs_on+0x37/0xe0 [ 19.974455] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 19.974494] ? __schedule+0x10cc/0x2b60 [ 19.974528] ? __pfx_read_tsc+0x10/0x10 [ 19.974558] ? ktime_get_ts64+0x86/0x230 [ 19.974594] kunit_try_run_case+0x1a5/0x480 [ 19.974696] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.974761] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 19.974800] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 19.974837] ? __kthread_parkme+0x82/0x180 [ 19.974873] ? preempt_count_sub+0x50/0x80 [ 19.974911] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.974947] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 19.974982] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 19.975017] kthread+0x337/0x6f0 [ 19.975042] ? trace_preempt_on+0x20/0xc0 [ 19.975075] ? __pfx_kthread+0x10/0x10 [ 19.975101] ? _raw_spin_unlock_irq+0x47/0x80 [ 19.975133] ? calculate_sigpending+0x7b/0xa0 [ 19.975167] ? __pfx_kthread+0x10/0x10 [ 19.975194] ret_from_fork+0x41/0x80 [ 19.975224] ? __pfx_kthread+0x10/0x10 [ 19.975250] ret_from_fork_asm+0x1a/0x30 [ 19.975298] </TASK> [ 19.975333] [ 19.996453] The buggy address belongs to stack of task kunit_try_catch/272 [ 19.997369] [ 19.997597] The buggy address belongs to the physical page: [ 19.998383] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a78f [ 19.999348] flags: 0x200000000000000(node=0|zone=2) [ 20.000012] raw: 0200000000000000 ffffea000429e3c8 ffffea000429e3c8 0000000000000000 [ 20.001059] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 20.002342] page dumped because: kasan: bad access detected [ 20.002739] [ 20.002968] Memory state around the buggy address: [ 20.003491] ffff88810a78fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.004245] ffff88810a78fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.005041] >ffff88810a78fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.006336] ^ [ 20.007021] ffff88810a78fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 20.007961] ffff88810a78fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 20.008635] ==================================================================