Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.417944] ================================================================== [ 21.418102] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x4c8/0x520 [ 21.418342] Read of size 1 at addr fff00000c4729800 by task kunit_try_catch/164 [ 21.418797] [ 21.418905] CPU: 1 UID: 0 PID: 164 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.419078] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.419136] Hardware name: linux,dummy-virt (DT) [ 21.419197] Call trace: [ 21.419247] show_stack+0x20/0x38 (C) [ 21.419390] dump_stack_lvl+0x8c/0xd0 [ 21.419535] print_report+0x118/0x608 [ 21.419654] kasan_report+0xdc/0x128 [ 21.419767] __asan_report_load1_noabort+0x20/0x30 [ 21.419896] krealloc_uaf+0x4c8/0x520 [ 21.420013] kunit_try_run_case+0x170/0x3f0 [ 21.420133] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.420264] kthread+0x328/0x630 [ 21.420376] ret_from_fork+0x10/0x20 [ 21.420498] [ 21.420541] Allocated by task 164: [ 21.420606] kasan_save_stack+0x3c/0x68 [ 21.420749] kasan_save_track+0x20/0x40 [ 21.420857] kasan_save_alloc_info+0x40/0x58 [ 21.420963] __kasan_kmalloc+0xd4/0xd8 [ 21.421054] __kmalloc_cache_noprof+0x15c/0x3c0 [ 21.421516] krealloc_uaf+0xc8/0x520 [ 21.421607] kunit_try_run_case+0x170/0x3f0 [ 21.421730] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.422063] kthread+0x328/0x630 [ 21.422239] ret_from_fork+0x10/0x20 [ 21.422496] [ 21.422673] Freed by task 164: [ 21.422766] kasan_save_stack+0x3c/0x68 [ 21.422864] kasan_save_track+0x20/0x40 [ 21.422945] kasan_save_free_info+0x4c/0x78 [ 21.423542] __kasan_slab_free+0x6c/0x98 [ 21.423640] kfree+0x214/0x3c8 [ 21.423682] krealloc_uaf+0x12c/0x520 [ 21.423723] kunit_try_run_case+0x170/0x3f0 [ 21.423802] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.423908] kthread+0x328/0x630 [ 21.424048] ret_from_fork+0x10/0x20 [ 21.424151] [ 21.424202] The buggy address belongs to the object at fff00000c4729800 [ 21.424202] which belongs to the cache kmalloc-256 of size 256 [ 21.424346] The buggy address is located 0 bytes inside of [ 21.424346] freed 256-byte region [fff00000c4729800, fff00000c4729900) [ 21.424513] [ 21.424566] The buggy address belongs to the physical page: [ 21.424646] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104728 [ 21.424780] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.424897] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.425037] page_type: f5(slab) [ 21.425163] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.425333] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.425463] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.425580] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.425748] head: 0bfffe0000000001 ffffc1ffc311ca01 00000000ffffffff 00000000ffffffff [ 21.426056] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 21.426301] page dumped because: kasan: bad access detected [ 21.426611] [ 21.426672] Memory state around the buggy address: [ 21.426749] fff00000c4729700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.426867] fff00000c4729780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.426958] >fff00000c4729800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.427033] ^ [ 21.427093] fff00000c4729880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.427188] fff00000c4729900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.427581] ================================================================== [ 21.402545] ================================================================== [ 21.402757] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x180/0x520 [ 21.402923] Read of size 1 at addr fff00000c4729800 by task kunit_try_catch/164 [ 21.403047] [ 21.403143] CPU: 1 UID: 0 PID: 164 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.403357] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.403429] Hardware name: linux,dummy-virt (DT) [ 21.403501] Call trace: [ 21.403554] show_stack+0x20/0x38 (C) [ 21.403675] dump_stack_lvl+0x8c/0xd0 [ 21.403801] print_report+0x118/0x608 [ 21.403991] kasan_report+0xdc/0x128 [ 21.405093] __kasan_check_byte+0x54/0x70 [ 21.405234] krealloc_noprof+0x44/0x360 [ 21.405351] krealloc_uaf+0x180/0x520 [ 21.405680] kunit_try_run_case+0x170/0x3f0 [ 21.405801] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.405959] kthread+0x328/0x630 [ 21.406088] ret_from_fork+0x10/0x20 [ 21.406216] [ 21.406263] Allocated by task 164: [ 21.406331] kasan_save_stack+0x3c/0x68 [ 21.406490] kasan_save_track+0x20/0x40 [ 21.406601] kasan_save_alloc_info+0x40/0x58 [ 21.406936] __kasan_kmalloc+0xd4/0xd8 [ 21.407050] __kmalloc_cache_noprof+0x15c/0x3c0 [ 21.407140] krealloc_uaf+0xc8/0x520 [ 21.407219] kunit_try_run_case+0x170/0x3f0 [ 21.407450] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.407567] kthread+0x328/0x630 [ 21.407649] ret_from_fork+0x10/0x20 [ 21.407781] [ 21.407874] Freed by task 164: [ 21.408518] kasan_save_stack+0x3c/0x68 [ 21.408648] kasan_save_track+0x20/0x40 [ 21.408905] kasan_save_free_info+0x4c/0x78 [ 21.409769] __kasan_slab_free+0x6c/0x98 [ 21.409921] kfree+0x214/0x3c8 [ 21.410274] krealloc_uaf+0x12c/0x520 [ 21.410396] kunit_try_run_case+0x170/0x3f0 [ 21.410635] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.410756] kthread+0x328/0x630 [ 21.410851] ret_from_fork+0x10/0x20 [ 21.410984] [ 21.411053] The buggy address belongs to the object at fff00000c4729800 [ 21.411053] which belongs to the cache kmalloc-256 of size 256 [ 21.411383] The buggy address is located 0 bytes inside of [ 21.411383] freed 256-byte region [fff00000c4729800, fff00000c4729900) [ 21.411706] [ 21.411763] The buggy address belongs to the physical page: [ 21.411936] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104728 [ 21.412224] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.412385] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.412762] page_type: f5(slab) [ 21.413003] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.413247] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.413369] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.413501] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.413619] head: 0bfffe0000000001 ffffc1ffc311ca01 00000000ffffffff 00000000ffffffff [ 21.413731] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 21.413833] page dumped because: kasan: bad access detected [ 21.413910] [ 21.414278] Memory state around the buggy address: [ 21.414511] fff00000c4729700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.414613] fff00000c4729780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.414714] >fff00000c4729800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.415054] ^ [ 21.415135] fff00000c4729880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 21.415247] fff00000c4729900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.415407] ==================================================================
[ 10.836352] ================================================================== [ 10.836692] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x53c/0x5e0 [ 10.837046] Read of size 1 at addr ffff888100a1de00 by task kunit_try_catch/181 [ 10.837352] [ 10.837753] CPU: 1 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.837962] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.837978] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.837999] Call Trace: [ 10.838011] <TASK> [ 10.838027] dump_stack_lvl+0x73/0xb0 [ 10.838056] print_report+0xd1/0x650 [ 10.838079] ? __virt_addr_valid+0x1db/0x2d0 [ 10.838102] ? krealloc_uaf+0x53c/0x5e0 [ 10.838123] ? kasan_complete_mode_report_info+0x64/0x200 [ 10.838146] ? krealloc_uaf+0x53c/0x5e0 [ 10.838167] kasan_report+0x141/0x180 [ 10.838189] ? krealloc_uaf+0x53c/0x5e0 [ 10.838215] __asan_report_load1_noabort+0x18/0x20 [ 10.838236] krealloc_uaf+0x53c/0x5e0 [ 10.838257] ? __pfx_krealloc_uaf+0x10/0x10 [ 10.838278] ? finish_task_switch.isra.0+0x153/0x700 [ 10.838299] ? __switch_to+0x47/0xf50 [ 10.838324] ? __schedule+0x10cc/0x2b60 [ 10.838347] ? __pfx_read_tsc+0x10/0x10 [ 10.838367] ? ktime_get_ts64+0x86/0x230 [ 10.838391] kunit_try_run_case+0x1a5/0x480 [ 10.838412] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.838431] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.838455] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.838479] ? __kthread_parkme+0x82/0x180 [ 10.838499] ? preempt_count_sub+0x50/0x80 [ 10.838521] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.838547] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.838571] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.838595] kthread+0x337/0x6f0 [ 10.838624] ? trace_preempt_on+0x20/0xc0 [ 10.838647] ? __pfx_kthread+0x10/0x10 [ 10.838667] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.838689] ? calculate_sigpending+0x7b/0xa0 [ 10.838713] ? __pfx_kthread+0x10/0x10 [ 10.838734] ret_from_fork+0x116/0x1d0 [ 10.838819] ? __pfx_kthread+0x10/0x10 [ 10.838841] ret_from_fork_asm+0x1a/0x30 [ 10.838872] </TASK> [ 10.838882] [ 10.849548] Allocated by task 181: [ 10.849782] kasan_save_stack+0x45/0x70 [ 10.850040] kasan_save_track+0x18/0x40 [ 10.850255] kasan_save_alloc_info+0x3b/0x50 [ 10.850600] __kasan_kmalloc+0xb7/0xc0 [ 10.850794] __kmalloc_cache_noprof+0x189/0x420 [ 10.851031] krealloc_uaf+0xbb/0x5e0 [ 10.851169] kunit_try_run_case+0x1a5/0x480 [ 10.851326] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.851593] kthread+0x337/0x6f0 [ 10.851848] ret_from_fork+0x116/0x1d0 [ 10.852199] ret_from_fork_asm+0x1a/0x30 [ 10.852578] [ 10.852721] Freed by task 181: [ 10.853123] kasan_save_stack+0x45/0x70 [ 10.853408] kasan_save_track+0x18/0x40 [ 10.853606] kasan_save_free_info+0x3f/0x60 [ 10.853904] __kasan_slab_free+0x56/0x70 [ 10.854077] kfree+0x222/0x3f0 [ 10.854197] krealloc_uaf+0x13d/0x5e0 [ 10.854386] kunit_try_run_case+0x1a5/0x480 [ 10.854627] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.855001] kthread+0x337/0x6f0 [ 10.855205] ret_from_fork+0x116/0x1d0 [ 10.855365] ret_from_fork_asm+0x1a/0x30 [ 10.855590] [ 10.855725] The buggy address belongs to the object at ffff888100a1de00 [ 10.855725] which belongs to the cache kmalloc-256 of size 256 [ 10.856322] The buggy address is located 0 bytes inside of [ 10.856322] freed 256-byte region [ffff888100a1de00, ffff888100a1df00) [ 10.856929] [ 10.857046] The buggy address belongs to the physical page: [ 10.857324] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a1c [ 10.857625] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.857996] flags: 0x200000000000040(head|node=0|zone=2) [ 10.858463] page_type: f5(slab) [ 10.858646] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.859178] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.859515] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.859937] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.860325] head: 0200000000000001 ffffea0004028701 00000000ffffffff 00000000ffffffff [ 10.860641] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 10.861003] page dumped because: kasan: bad access detected [ 10.861241] [ 10.861426] Memory state around the buggy address: [ 10.861591] ffff888100a1dd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.862153] ffff888100a1dd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.862500] >ffff888100a1de00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 10.862825] ^ [ 10.863115] ffff888100a1de80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 10.863552] ffff888100a1df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.863917] ================================================================== [ 10.804223] ================================================================== [ 10.804737] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x1b8/0x5e0 [ 10.805124] Read of size 1 at addr ffff888100a1de00 by task kunit_try_catch/181 [ 10.805437] [ 10.805552] CPU: 1 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.805597] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.805621] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.805642] Call Trace: [ 10.805654] <TASK> [ 10.805669] dump_stack_lvl+0x73/0xb0 [ 10.805694] print_report+0xd1/0x650 [ 10.805716] ? __virt_addr_valid+0x1db/0x2d0 [ 10.805739] ? krealloc_uaf+0x1b8/0x5e0 [ 10.805828] ? kasan_complete_mode_report_info+0x64/0x200 [ 10.805853] ? krealloc_uaf+0x1b8/0x5e0 [ 10.805875] kasan_report+0x141/0x180 [ 10.805897] ? krealloc_uaf+0x1b8/0x5e0 [ 10.805923] ? krealloc_uaf+0x1b8/0x5e0 [ 10.805944] __kasan_check_byte+0x3d/0x50 [ 10.805966] krealloc_noprof+0x3f/0x340 [ 10.805992] krealloc_uaf+0x1b8/0x5e0 [ 10.806014] ? __pfx_krealloc_uaf+0x10/0x10 [ 10.806035] ? finish_task_switch.isra.0+0x153/0x700 [ 10.806057] ? __switch_to+0x47/0xf50 [ 10.806080] ? __schedule+0x10cc/0x2b60 [ 10.806104] ? __pfx_read_tsc+0x10/0x10 [ 10.806124] ? ktime_get_ts64+0x86/0x230 [ 10.806149] kunit_try_run_case+0x1a5/0x480 [ 10.806170] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.806189] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.806213] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.806237] ? __kthread_parkme+0x82/0x180 [ 10.806256] ? preempt_count_sub+0x50/0x80 [ 10.806279] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.806300] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.806324] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.806348] kthread+0x337/0x6f0 [ 10.806367] ? trace_preempt_on+0x20/0xc0 [ 10.806390] ? __pfx_kthread+0x10/0x10 [ 10.806410] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.806432] ? calculate_sigpending+0x7b/0xa0 [ 10.806456] ? __pfx_kthread+0x10/0x10 [ 10.806478] ret_from_fork+0x116/0x1d0 [ 10.806495] ? __pfx_kthread+0x10/0x10 [ 10.806516] ret_from_fork_asm+0x1a/0x30 [ 10.806553] </TASK> [ 10.806564] [ 10.818518] Allocated by task 181: [ 10.818709] kasan_save_stack+0x45/0x70 [ 10.819324] kasan_save_track+0x18/0x40 [ 10.819528] kasan_save_alloc_info+0x3b/0x50 [ 10.819734] __kasan_kmalloc+0xb7/0xc0 [ 10.820170] __kmalloc_cache_noprof+0x189/0x420 [ 10.820382] krealloc_uaf+0xbb/0x5e0 [ 10.820557] kunit_try_run_case+0x1a5/0x480 [ 10.821021] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.821327] kthread+0x337/0x6f0 [ 10.821719] ret_from_fork+0x116/0x1d0 [ 10.822104] ret_from_fork_asm+0x1a/0x30 [ 10.822299] [ 10.822409] Freed by task 181: [ 10.822577] kasan_save_stack+0x45/0x70 [ 10.822738] kasan_save_track+0x18/0x40 [ 10.822881] kasan_save_free_info+0x3f/0x60 [ 10.823200] __kasan_slab_free+0x56/0x70 [ 10.823431] kfree+0x222/0x3f0 [ 10.823579] krealloc_uaf+0x13d/0x5e0 [ 10.823792] kunit_try_run_case+0x1a5/0x480 [ 10.824098] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.824282] kthread+0x337/0x6f0 [ 10.824453] ret_from_fork+0x116/0x1d0 [ 10.824679] ret_from_fork_asm+0x1a/0x30 [ 10.824994] [ 10.825172] The buggy address belongs to the object at ffff888100a1de00 [ 10.825172] which belongs to the cache kmalloc-256 of size 256 [ 10.825692] The buggy address is located 0 bytes inside of [ 10.825692] freed 256-byte region [ffff888100a1de00, ffff888100a1df00) [ 10.826320] [ 10.826397] The buggy address belongs to the physical page: [ 10.827029] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a1c [ 10.827606] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.828318] flags: 0x200000000000040(head|node=0|zone=2) [ 10.828667] page_type: f5(slab) [ 10.828898] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.829520] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.829998] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.830416] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.830898] head: 0200000000000001 ffffea0004028701 00000000ffffffff 00000000ffffffff [ 10.831280] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 10.831659] page dumped because: kasan: bad access detected [ 10.832163] [ 10.832273] Memory state around the buggy address: [ 10.832547] ffff888100a1dd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.832984] ffff888100a1dd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.833692] >ffff888100a1de00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 10.834183] ^ [ 10.834352] ffff888100a1de80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 10.834687] ffff888100a1df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.835215] ==================================================================