Date
June 3, 2025, 7:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 | |
| x86 |
[ 18.136640] ================================================================== [ 18.136717] BUG: KASAN: use-after-free in kmalloc_large_uaf+0x2cc/0x2f8 [ 18.136775] Read of size 1 at addr fff00000c6474000 by task kunit_try_catch/148 [ 18.136829] [ 18.136863] CPU: 1 UID: 0 PID: 148 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT [ 18.136947] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.136973] Hardware name: linux,dummy-virt (DT) [ 18.137002] Call trace: [ 18.137024] show_stack+0x20/0x38 (C) [ 18.137071] dump_stack_lvl+0x8c/0xd0 [ 18.137118] print_report+0x118/0x608 [ 18.137163] kasan_report+0xdc/0x128 [ 18.137206] __asan_report_load1_noabort+0x20/0x30 [ 18.137252] kmalloc_large_uaf+0x2cc/0x2f8 [ 18.137296] kunit_try_run_case+0x170/0x3f0 [ 18.137342] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.137393] kthread+0x328/0x630 [ 18.137448] ret_from_fork+0x10/0x20 [ 18.137495] [ 18.137516] The buggy address belongs to the physical page: [ 18.137547] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106474 [ 18.137596] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.137660] raw: 0bfffe0000000000 ffffc1ffc3191e08 fff00000da46ac40 0000000000000000 [ 18.137707] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 18.137746] page dumped because: kasan: bad access detected [ 18.137775] [ 18.137793] Memory state around the buggy address: [ 18.137824] fff00000c6473f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.137864] fff00000c6473f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.137904] >fff00000c6474000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.137941] ^ [ 18.137970] fff00000c6474080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.138010] fff00000c6474100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.138046] ==================================================================
[ 13.722356] ================================================================== [ 13.723118] BUG: KASAN: use-after-free in kmalloc_large_uaf+0x2f1/0x340 [ 13.723498] Read of size 1 at addr ffff888103948000 by task kunit_try_catch/165 [ 13.723855] [ 13.723995] CPU: 1 UID: 0 PID: 165 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT(voluntary) [ 13.724054] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.724068] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.724091] Call Trace: [ 13.724108] <TASK> [ 13.724133] dump_stack_lvl+0x73/0xb0 [ 13.724166] print_report+0xd1/0x650 [ 13.724190] ? __virt_addr_valid+0x1db/0x2d0 [ 13.724702] ? kmalloc_large_uaf+0x2f1/0x340 [ 13.724770] ? kasan_addr_to_slab+0x11/0xa0 [ 13.725163] ? kmalloc_large_uaf+0x2f1/0x340 [ 13.725218] kasan_report+0x141/0x180 [ 13.725273] ? kmalloc_large_uaf+0x2f1/0x340 [ 13.725353] __asan_report_load1_noabort+0x18/0x20 [ 13.725385] kmalloc_large_uaf+0x2f1/0x340 [ 13.725409] ? __pfx_kmalloc_large_uaf+0x10/0x10 [ 13.725435] ? __schedule+0x10cc/0x2b60 [ 13.725486] ? __pfx_read_tsc+0x10/0x10 [ 13.725516] ? ktime_get_ts64+0x86/0x230 [ 13.725544] kunit_try_run_case+0x1a5/0x480 [ 13.725568] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.725589] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.725617] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.725643] ? __kthread_parkme+0x82/0x180 [ 13.725666] ? preempt_count_sub+0x50/0x80 [ 13.725692] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.725714] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.725740] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.725765] kthread+0x337/0x6f0 [ 13.725787] ? trace_preempt_on+0x20/0xc0 [ 13.725812] ? __pfx_kthread+0x10/0x10 [ 13.725834] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.725858] ? calculate_sigpending+0x7b/0xa0 [ 13.725884] ? __pfx_kthread+0x10/0x10 [ 13.725907] ret_from_fork+0x116/0x1d0 [ 13.725928] ? __pfx_kthread+0x10/0x10 [ 13.725950] ret_from_fork_asm+0x1a/0x30 [ 13.725983] </TASK> [ 13.725996] [ 13.735988] The buggy address belongs to the physical page: [ 13.736539] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103948 [ 13.737356] flags: 0x200000000000000(node=0|zone=2) [ 13.737826] raw: 0200000000000000 ffffea00040e5308 ffff88815b139f80 0000000000000000 [ 13.738123] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.738867] page dumped because: kasan: bad access detected [ 13.739082] [ 13.739273] Memory state around the buggy address: [ 13.739783] ffff888103947f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.740098] ffff888103947f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.740739] >ffff888103948000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.741225] ^ [ 13.741651] ffff888103948080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.742058] ffff888103948100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 13.742417] ==================================================================
[ 19.837735] ================================================================== [ 19.849228] BUG: KASAN: use-after-free in kmalloc_large_uaf+0x2f1/0x340 [ 19.855849] Read of size 1 at addr ffff888104b7c000 by task kunit_try_catch/188 [ 19.863164] [ 19.864663] CPU: 0 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G S B N 6.15.0-next-20250603 #1 PREEMPT(voluntary) [ 19.864673] Tainted: [S]=CPU_OUT_OF_SPEC, [B]=BAD_PAGE, [N]=TEST [ 19.864675] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.7 12/07/2021 [ 19.864679] Call Trace: [ 19.864680] <TASK> [ 19.864682] dump_stack_lvl+0x73/0xb0 [ 19.864686] print_report+0xd1/0x650 [ 19.864690] ? __virt_addr_valid+0x1db/0x2d0 [ 19.864694] ? kmalloc_large_uaf+0x2f1/0x340 [ 19.864698] ? kasan_addr_to_slab+0x11/0xa0 [ 19.864702] ? kmalloc_large_uaf+0x2f1/0x340 [ 19.864706] kasan_report+0x141/0x180 [ 19.864710] ? kmalloc_large_uaf+0x2f1/0x340 [ 19.864714] __asan_report_load1_noabort+0x18/0x20 [ 19.864718] kmalloc_large_uaf+0x2f1/0x340 [ 19.864722] ? __pfx_kmalloc_large_uaf+0x10/0x10 [ 19.864726] ? __schedule+0x10cc/0x2b60 [ 19.864730] ? ktime_get_ts64+0x83/0x230 [ 19.864734] kunit_try_run_case+0x1a2/0x480 [ 19.864738] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.864741] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 19.864746] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 19.864751] ? __kthread_parkme+0x82/0x180 [ 19.864754] ? preempt_count_sub+0x50/0x80 [ 19.864758] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.864762] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 19.864766] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 19.864771] kthread+0x334/0x6f0 [ 19.864774] ? trace_preempt_on+0x20/0xc0 [ 19.864778] ? __pfx_kthread+0x10/0x10 [ 19.864782] ? _raw_spin_unlock_irq+0x47/0x80 [ 19.864786] ? calculate_sigpending+0x7b/0xa0 [ 19.864790] ? __pfx_kthread+0x10/0x10 [ 19.864794] ret_from_fork+0x113/0x1d0 [ 19.864797] ? __pfx_kthread+0x10/0x10 [ 19.864801] ret_from_fork_asm+0x1a/0x30 [ 19.864807] </TASK> [ 19.864808] [ 20.029318] The buggy address belongs to the physical page: [ 20.034890] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104b7c [ 20.042898] flags: 0x200000000000000(node=0|zone=2) [ 20.047778] raw: 0200000000000000 ffffea000412e008 ffff888230439f80 0000000000000000 [ 20.055519] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 20.063264] page dumped because: kasan: bad access detected [ 20.068836] [ 20.070336] Memory state around the buggy address: [ 20.075164] ffff888104b7bf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.082388] ffff888104b7bf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.089656] >ffff888104b7c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.096873] ^ [ 20.100105] ffff888104b7c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.107327] ffff888104b7c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 20.114544] ==================================================================