Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 25.406246] ================================================================== [ 25.406928] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 25.407412] Read of size 1 at addr ffff8000809c7b4a by task kunit_try_catch/257 [ 25.407712] [ 25.407874] CPU: 1 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT [ 25.408527] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.408887] Hardware name: linux,dummy-virt (DT) [ 25.409381] Call trace: [ 25.409509] show_stack+0x20/0x38 (C) [ 25.409649] dump_stack_lvl+0x8c/0xd0 [ 25.410166] print_report+0x310/0x608 [ 25.410533] kasan_report+0xdc/0x128 [ 25.410679] __asan_report_load1_noabort+0x20/0x30 [ 25.410809] kasan_alloca_oob_right+0x2dc/0x340 [ 25.410918] kunit_try_run_case+0x170/0x3f0 [ 25.411273] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 25.411745] kthread+0x328/0x630 [ 25.411877] ret_from_fork+0x10/0x20 [ 25.412086] [ 25.412151] The buggy address belongs to stack of task kunit_try_catch/257 [ 25.412279] [ 25.412345] The buggy address belongs to the virtual mapping at [ 25.412345] [ffff8000809c0000, ffff8000809c9000) created by: [ 25.412345] kernel_clone+0x150/0x7a8 [ 25.412555] [ 25.413032] The buggy address belongs to the physical page: [ 25.413249] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063be [ 25.413412] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 25.414042] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 25.414324] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 25.414530] page dumped because: kasan: bad access detected [ 25.414639] [ 25.415064] Memory state around the buggy address: [ 25.415188] ffff8000809c7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.415412] ffff8000809c7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.415617] >ffff8000809c7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 25.415726] ^ [ 25.415842] ffff8000809c7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 25.416035] ffff8000809c7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 25.416144] ==================================================================
[ 15.795992] ================================================================== [ 15.796398] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 15.796852] Read of size 1 at addr ffff888103a47c4a by task kunit_try_catch/273 [ 15.797241] [ 15.797322] CPU: 1 UID: 0 PID: 273 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT(voluntary) [ 15.797379] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.797392] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.797416] Call Trace: [ 15.797433] <TASK> [ 15.797453] dump_stack_lvl+0x73/0xb0 [ 15.797497] print_report+0xd1/0x650 [ 15.797523] ? __virt_addr_valid+0x1db/0x2d0 [ 15.797547] ? kasan_alloca_oob_right+0x329/0x390 [ 15.797590] ? kasan_addr_to_slab+0x11/0xa0 [ 15.797612] ? kasan_alloca_oob_right+0x329/0x390 [ 15.797694] kasan_report+0x141/0x180 [ 15.797728] ? kasan_alloca_oob_right+0x329/0x390 [ 15.797755] __asan_report_load1_noabort+0x18/0x20 [ 15.797776] kasan_alloca_oob_right+0x329/0x390 [ 15.797799] ? finish_task_switch.isra.0+0x153/0x700 [ 15.797838] ? rt_mutex_adjust_prio_chain+0x19ae/0x20e0 [ 15.797860] ? trace_hardirqs_on+0x37/0xe0 [ 15.797884] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 15.797921] ? __schedule+0x10cc/0x2b30 [ 15.797942] ? __pfx_read_tsc+0x10/0x10 [ 15.797975] ? ktime_get_ts64+0x86/0x230 [ 15.798003] kunit_try_run_case+0x1a5/0x480 [ 15.798037] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.798061] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.798083] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.798104] ? __kthread_parkme+0x82/0x180 [ 15.798126] ? preempt_count_sub+0x50/0x80 [ 15.798147] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.798169] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.798191] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.798212] kthread+0x337/0x6f0 [ 15.798230] ? trace_preempt_on+0x20/0xc0 [ 15.798250] ? __pfx_kthread+0x10/0x10 [ 15.798268] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.798287] ? calculate_sigpending+0x7b/0xa0 [ 15.798308] ? __pfx_kthread+0x10/0x10 [ 15.798325] ret_from_fork+0x41/0x80 [ 15.798345] ? __pfx_kthread+0x10/0x10 [ 15.798362] ret_from_fork_asm+0x1a/0x30 [ 15.798391] </TASK> [ 15.798403] [ 15.805228] The buggy address belongs to stack of task kunit_try_catch/273 [ 15.805732] [ 15.805860] The buggy address belongs to the physical page: [ 15.806040] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a47 [ 15.806349] flags: 0x200000000000000(node=0|zone=2) [ 15.806605] raw: 0200000000000000 ffffea00040e91c8 ffffea00040e91c8 0000000000000000 [ 15.807046] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 15.807372] page dumped because: kasan: bad access detected [ 15.807725] [ 15.807858] Memory state around the buggy address: [ 15.808063] ffff888103a47b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.808204] ffff888103a47b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.808331] >ffff888103a47c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 15.808451] ^ [ 15.808557] ffff888103a47c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 15.808723] ffff888103a47d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 15.809348] ==================================================================