Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.801203] ================================================================== [ 23.801755] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2c0/0x318 [ 23.802247] Read of size 1 at addr ffff800080bc7bdf by task kunit_try_catch/239 [ 23.804132] [ 23.804456] CPU: 0 UID: 0 PID: 239 Comm: kunit_try_catch Tainted: G B N 6.12.33-rc1 #1 [ 23.804661] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.804785] Hardware name: linux,dummy-virt (DT) [ 23.805070] Call trace: [ 23.805133] dump_backtrace+0x9c/0x128 [ 23.805271] show_stack+0x20/0x38 [ 23.805381] dump_stack_lvl+0x8c/0xd0 [ 23.805481] print_report+0x310/0x5f0 [ 23.805588] kasan_report+0xdc/0x128 [ 23.805653] __asan_report_load1_noabort+0x20/0x30 [ 23.805706] kasan_alloca_oob_left+0x2c0/0x318 [ 23.805755] kunit_try_run_case+0x170/0x3f0 [ 23.805802] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.805855] kthread+0x24c/0x2d0 [ 23.805902] ret_from_fork+0x10/0x20 [ 23.805950] [ 23.814662] The buggy address belongs to stack of task kunit_try_catch/239 [ 23.815613] [ 23.815955] The buggy address belongs to the virtual mapping at [ 23.815955] [ffff800080bc0000, ffff800080bc9000) created by: [ 23.815955] kernel_clone+0x150/0x7a8 [ 23.817660] [ 23.818025] The buggy address belongs to the physical page: [ 23.818734] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1041f7 [ 23.819829] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.821194] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 23.822156] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 23.822990] page dumped because: kasan: bad access detected [ 23.824147] [ 23.824302] Memory state around the buggy address: [ 23.824537] ffff800080bc7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.824859] ffff800080bc7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.825452] >ffff800080bc7b80: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 23.826346] ^ [ 23.826888] ffff800080bc7c00: cb cb cb cb 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 [ 23.827557] ffff800080bc7c80: 04 f2 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 [ 23.829391] ==================================================================
[ 20.474021] ================================================================== [ 20.474806] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x322/0x380 [ 20.475462] Read of size 1 at addr ffff888102cdfc9f by task kunit_try_catch/256 [ 20.476054] [ 20.476349] CPU: 1 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.12.33-rc1 #1 [ 20.476463] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.476502] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 20.476559] Call Trace: [ 20.476598] <TASK> [ 20.476640] dump_stack_lvl+0x73/0xb0 [ 20.476721] print_report+0xd1/0x640 [ 20.476796] ? __virt_addr_valid+0x1db/0x2d0 [ 20.476917] ? kasan_alloca_oob_left+0x322/0x380 [ 20.476991] ? kasan_addr_to_slab+0x11/0xa0 [ 20.477060] ? kasan_alloca_oob_left+0x322/0x380 [ 20.477143] kasan_report+0x140/0x180 [ 20.477244] ? kasan_alloca_oob_left+0x322/0x380 [ 20.477332] __asan_report_load1_noabort+0x18/0x20 [ 20.477407] kasan_alloca_oob_left+0x322/0x380 [ 20.477494] ? dup_user_cpus_ptr+0x11e/0x260 [ 20.477566] ? __schedule+0xc49/0x27a0 [ 20.477630] ? trace_hardirqs_on+0x37/0xe0 [ 20.477699] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 20.477741] ? __schedule+0xc49/0x27a0 [ 20.477767] ? __pfx_read_tsc+0x10/0x10 [ 20.477793] ? ktime_get_ts64+0x84/0x230 [ 20.477880] kunit_try_run_case+0x1a6/0x480 [ 20.477918] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.477947] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 20.477976] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 20.478013] ? __kthread_parkme+0x82/0x160 [ 20.478041] ? preempt_count_sub+0x50/0x80 [ 20.478070] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.478097] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 20.478132] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.478170] kthread+0x257/0x310 [ 20.478198] ? __pfx_kthread+0x10/0x10 [ 20.478250] ret_from_fork+0x41/0x80 [ 20.478286] ? __pfx_kthread+0x10/0x10 [ 20.478312] ret_from_fork_asm+0x1a/0x30 [ 20.478352] </TASK> [ 20.478366] [ 20.492347] The buggy address belongs to stack of task kunit_try_catch/256 [ 20.492960] [ 20.493191] The buggy address belongs to the physical page: [ 20.493772] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102cdf [ 20.494507] flags: 0x200000000000000(node=0|zone=2) [ 20.494987] raw: 0200000000000000 ffffea00040b37c8 ffffea00040b37c8 0000000000000000 [ 20.495673] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 20.496398] page dumped because: kasan: bad access detected [ 20.496931] [ 20.497148] Memory state around the buggy address: [ 20.497502] ffff888102cdfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.498197] ffff888102cdfc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.498913] >ffff888102cdfc80: ca ca ca ca 00 02 cb cb cb cb cb cb 00 00 00 00 [ 20.499413] ^ [ 20.499892] ffff888102cdfd00: 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 00 f3 [ 20.500539] ffff888102cdfd80: f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 [ 20.501142] ==================================================================