Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.169725] ================================================================== [ 24.170018] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 24.170649] Read of size 1 at addr fff00000c66ad300 by task kunit_try_catch/227 [ 24.170759] [ 24.170858] CPU: 0 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 24.171072] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.171147] Hardware name: linux,dummy-virt (DT) [ 24.171233] Call trace: [ 24.171346] show_stack+0x20/0x38 (C) [ 24.172017] dump_stack_lvl+0x8c/0xd0 [ 24.172535] print_report+0x118/0x608 [ 24.172741] kasan_report+0xdc/0x128 [ 24.172987] __asan_report_load1_noabort+0x20/0x30 [ 24.173610] mempool_uaf_helper+0x314/0x340 [ 24.173781] mempool_kmalloc_uaf+0xc4/0x120 [ 24.174004] kunit_try_run_case+0x170/0x3f0 [ 24.174206] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.174348] kthread+0x328/0x630 [ 24.174928] ret_from_fork+0x10/0x20 [ 24.175175] [ 24.175255] Allocated by task 227: [ 24.175435] kasan_save_stack+0x3c/0x68 [ 24.175735] kasan_save_track+0x20/0x40 [ 24.175823] kasan_save_alloc_info+0x40/0x58 [ 24.175908] __kasan_mempool_unpoison_object+0x11c/0x180 [ 24.176014] remove_element+0x130/0x1f8 [ 24.176474] mempool_alloc_preallocated+0x58/0xc0 [ 24.176675] mempool_uaf_helper+0xa4/0x340 [ 24.176913] mempool_kmalloc_uaf+0xc4/0x120 [ 24.177026] kunit_try_run_case+0x170/0x3f0 [ 24.177126] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.177727] kthread+0x328/0x630 [ 24.177854] ret_from_fork+0x10/0x20 [ 24.178039] [ 24.178114] Freed by task 227: [ 24.178371] kasan_save_stack+0x3c/0x68 [ 24.178762] kasan_save_track+0x20/0x40 [ 24.178910] kasan_save_free_info+0x4c/0x78 [ 24.179009] __kasan_mempool_poison_object+0xc0/0x150 [ 24.179104] mempool_free+0x28c/0x328 [ 24.179170] mempool_uaf_helper+0x104/0x340 [ 24.179240] mempool_kmalloc_uaf+0xc4/0x120 [ 24.180944] kunit_try_run_case+0x170/0x3f0 [ 24.183435] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.183690] kthread+0x328/0x630 [ 24.183753] ret_from_fork+0x10/0x20 [ 24.183834] [ 24.183867] The buggy address belongs to the object at fff00000c66ad300 [ 24.183867] which belongs to the cache kmalloc-128 of size 128 [ 24.183943] The buggy address is located 0 bytes inside of [ 24.183943] freed 128-byte region [fff00000c66ad300, fff00000c66ad380) [ 24.184059] [ 24.184087] The buggy address belongs to the physical page: [ 24.184126] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066ad [ 24.184191] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.184252] page_type: f5(slab) [ 24.184302] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 24.184360] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.184426] page dumped because: kasan: bad access detected [ 24.184465] [ 24.184486] Memory state around the buggy address: [ 24.184524] fff00000c66ad200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.184573] fff00000c66ad280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.184620] >fff00000c66ad300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.184662] ^ [ 24.184695] fff00000c66ad380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.184741] fff00000c66ad400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.184784] ================================================================== [ 24.244827] ================================================================== [ 24.245031] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 24.245182] Read of size 1 at addr fff00000c63de240 by task kunit_try_catch/231 [ 24.245293] [ 24.245382] CPU: 0 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 24.245822] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.246005] Hardware name: linux,dummy-virt (DT) [ 24.246094] Call trace: [ 24.246194] show_stack+0x20/0x38 (C) [ 24.246382] dump_stack_lvl+0x8c/0xd0 [ 24.246477] print_report+0x118/0x608 [ 24.246538] kasan_report+0xdc/0x128 [ 24.246619] __asan_report_load1_noabort+0x20/0x30 [ 24.246678] mempool_uaf_helper+0x314/0x340 [ 24.246729] mempool_slab_uaf+0xc0/0x118 [ 24.246781] kunit_try_run_case+0x170/0x3f0 [ 24.246863] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.246925] kthread+0x328/0x630 [ 24.246975] ret_from_fork+0x10/0x20 [ 24.247034] [ 24.247059] Allocated by task 231: [ 24.247095] kasan_save_stack+0x3c/0x68 [ 24.247148] kasan_save_track+0x20/0x40 [ 24.247191] kasan_save_alloc_info+0x40/0x58 [ 24.247233] __kasan_mempool_unpoison_object+0xbc/0x180 [ 24.247281] remove_element+0x16c/0x1f8 [ 24.247324] mempool_alloc_preallocated+0x58/0xc0 [ 24.247368] mempool_uaf_helper+0xa4/0x340 [ 24.247446] mempool_slab_uaf+0xc0/0x118 [ 24.247550] kunit_try_run_case+0x170/0x3f0 [ 24.247630] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.247714] kthread+0x328/0x630 [ 24.247788] ret_from_fork+0x10/0x20 [ 24.247871] [ 24.247932] Freed by task 231: [ 24.248024] kasan_save_stack+0x3c/0x68 [ 24.248174] kasan_save_track+0x20/0x40 [ 24.248311] kasan_save_free_info+0x4c/0x78 [ 24.248427] __kasan_mempool_poison_object+0xc0/0x150 [ 24.248538] mempool_free+0x28c/0x328 [ 24.248637] mempool_uaf_helper+0x104/0x340 [ 24.248771] mempool_slab_uaf+0xc0/0x118 [ 24.248883] kunit_try_run_case+0x170/0x3f0 [ 24.249002] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.249153] kthread+0x328/0x630 [ 24.249247] ret_from_fork+0x10/0x20 [ 24.249351] [ 24.249423] The buggy address belongs to the object at fff00000c63de240 [ 24.249423] which belongs to the cache test_cache of size 123 [ 24.249561] The buggy address is located 0 bytes inside of [ 24.249561] freed 123-byte region [fff00000c63de240, fff00000c63de2bb) [ 24.249720] [ 24.249773] The buggy address belongs to the physical page: [ 24.250437] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063de [ 24.251124] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.251303] page_type: f5(slab) [ 24.251416] raw: 0bfffe0000000000 fff00000c63dc000 dead000000000122 0000000000000000 [ 24.251760] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 24.251845] page dumped because: kasan: bad access detected [ 24.251918] [ 24.251960] Memory state around the buggy address: [ 24.252040] fff00000c63de100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.252176] fff00000c63de180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.252277] >fff00000c63de200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 24.252752] ^ [ 24.252885] fff00000c63de280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.253006] fff00000c63de300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.253115] ==================================================================
[ 12.425457] ================================================================== [ 12.426331] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.426582] Read of size 1 at addr ffff8881028b4240 by task kunit_try_catch/248 [ 12.426837] [ 12.427056] CPU: 1 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 12.427107] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.427120] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.427143] Call Trace: [ 12.427154] <TASK> [ 12.427170] dump_stack_lvl+0x73/0xb0 [ 12.427198] print_report+0xd1/0x650 [ 12.427220] ? __virt_addr_valid+0x1db/0x2d0 [ 12.427243] ? mempool_uaf_helper+0x392/0x400 [ 12.427266] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.427289] ? mempool_uaf_helper+0x392/0x400 [ 12.427313] kasan_report+0x141/0x180 [ 12.427335] ? mempool_uaf_helper+0x392/0x400 [ 12.427363] __asan_report_load1_noabort+0x18/0x20 [ 12.427384] mempool_uaf_helper+0x392/0x400 [ 12.427407] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.427433] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.427455] ? finish_task_switch.isra.0+0x153/0x700 [ 12.427482] mempool_slab_uaf+0xea/0x140 [ 12.427501] ? __pfx_mempool_slab_uaf+0x10/0x10 [ 12.427523] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 12.427543] ? __pfx_mempool_free_slab+0x10/0x10 [ 12.427565] ? __pfx_read_tsc+0x10/0x10 [ 12.427587] ? ktime_get_ts64+0x86/0x230 [ 12.427623] kunit_try_run_case+0x1a5/0x480 [ 12.427645] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.427664] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.427689] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.427713] ? __kthread_parkme+0x82/0x180 [ 12.427734] ? preempt_count_sub+0x50/0x80 [ 12.427805] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.427828] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.427853] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.427878] kthread+0x337/0x6f0 [ 12.427898] ? trace_preempt_on+0x20/0xc0 [ 12.427920] ? __pfx_kthread+0x10/0x10 [ 12.427941] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.428161] ? calculate_sigpending+0x7b/0xa0 [ 12.428194] ? __pfx_kthread+0x10/0x10 [ 12.428216] ret_from_fork+0x116/0x1d0 [ 12.428235] ? __pfx_kthread+0x10/0x10 [ 12.428256] ret_from_fork_asm+0x1a/0x30 [ 12.428287] </TASK> [ 12.428298] [ 12.443951] Allocated by task 248: [ 12.444295] kasan_save_stack+0x45/0x70 [ 12.444701] kasan_save_track+0x18/0x40 [ 12.445170] kasan_save_alloc_info+0x3b/0x50 [ 12.445480] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 12.445680] remove_element+0x11e/0x190 [ 12.446032] mempool_alloc_preallocated+0x4d/0x90 [ 12.446485] mempool_uaf_helper+0x96/0x400 [ 12.446892] mempool_slab_uaf+0xea/0x140 [ 12.447352] kunit_try_run_case+0x1a5/0x480 [ 12.447917] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.448123] kthread+0x337/0x6f0 [ 12.448250] ret_from_fork+0x116/0x1d0 [ 12.448387] ret_from_fork_asm+0x1a/0x30 [ 12.448531] [ 12.448603] Freed by task 248: [ 12.448739] kasan_save_stack+0x45/0x70 [ 12.448894] kasan_save_track+0x18/0x40 [ 12.449136] kasan_save_free_info+0x3f/0x60 [ 12.449335] __kasan_mempool_poison_object+0x131/0x1d0 [ 12.449553] mempool_free+0x2ec/0x380 [ 12.449758] mempool_uaf_helper+0x11a/0x400 [ 12.449997] mempool_slab_uaf+0xea/0x140 [ 12.450195] kunit_try_run_case+0x1a5/0x480 [ 12.450344] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.450590] kthread+0x337/0x6f0 [ 12.450836] ret_from_fork+0x116/0x1d0 [ 12.451318] ret_from_fork_asm+0x1a/0x30 [ 12.451509] [ 12.451629] The buggy address belongs to the object at ffff8881028b4240 [ 12.451629] which belongs to the cache test_cache of size 123 [ 12.452476] The buggy address is located 0 bytes inside of [ 12.452476] freed 123-byte region [ffff8881028b4240, ffff8881028b42bb) [ 12.452999] [ 12.453248] The buggy address belongs to the physical page: [ 12.453499] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028b4 [ 12.454091] flags: 0x200000000000000(node=0|zone=2) [ 12.454423] page_type: f5(slab) [ 12.454561] raw: 0200000000000000 ffff8881028a7500 dead000000000122 0000000000000000 [ 12.455154] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 12.455645] page dumped because: kasan: bad access detected [ 12.456102] [ 12.456209] Memory state around the buggy address: [ 12.456625] ffff8881028b4100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.457241] ffff8881028b4180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.457564] >ffff8881028b4200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 12.458085] ^ [ 12.458398] ffff8881028b4280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.458832] ffff8881028b4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.459411] ================================================================== [ 12.355807] ================================================================== [ 12.356482] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 12.356745] Read of size 1 at addr ffff8881028b1000 by task kunit_try_catch/244 [ 12.357426] [ 12.357861] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 12.357915] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.357929] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.357951] Call Trace: [ 12.357964] <TASK> [ 12.357980] dump_stack_lvl+0x73/0xb0 [ 12.358010] print_report+0xd1/0x650 [ 12.358033] ? __virt_addr_valid+0x1db/0x2d0 [ 12.358057] ? mempool_uaf_helper+0x392/0x400 [ 12.358079] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.358330] ? mempool_uaf_helper+0x392/0x400 [ 12.358356] kasan_report+0x141/0x180 [ 12.358380] ? mempool_uaf_helper+0x392/0x400 [ 12.358408] __asan_report_load1_noabort+0x18/0x20 [ 12.358429] mempool_uaf_helper+0x392/0x400 [ 12.358461] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 12.358485] ? __kasan_check_write+0x18/0x20 [ 12.358506] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.358531] ? finish_task_switch.isra.0+0x153/0x700 [ 12.358566] mempool_kmalloc_uaf+0xef/0x140 [ 12.358592] ? __pfx_mempool_kmalloc_uaf+0x10/0x10 [ 12.358628] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.358648] ? __pfx_mempool_kfree+0x10/0x10 [ 12.358672] ? __pfx_read_tsc+0x10/0x10 [ 12.358694] ? ktime_get_ts64+0x86/0x230 [ 12.358722] kunit_try_run_case+0x1a5/0x480 [ 12.358747] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.358796] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.358838] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.358874] ? __kthread_parkme+0x82/0x180 [ 12.358895] ? preempt_count_sub+0x50/0x80 [ 12.358917] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.358939] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.358964] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.358989] kthread+0x337/0x6f0 [ 12.359009] ? trace_preempt_on+0x20/0xc0 [ 12.359033] ? __pfx_kthread+0x10/0x10 [ 12.359053] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.359075] ? calculate_sigpending+0x7b/0xa0 [ 12.359100] ? __pfx_kthread+0x10/0x10 [ 12.359121] ret_from_fork+0x116/0x1d0 [ 12.359139] ? __pfx_kthread+0x10/0x10 [ 12.359160] ret_from_fork_asm+0x1a/0x30 [ 12.359191] </TASK> [ 12.359202] [ 12.374406] Allocated by task 244: [ 12.374574] kasan_save_stack+0x45/0x70 [ 12.374776] kasan_save_track+0x18/0x40 [ 12.374917] kasan_save_alloc_info+0x3b/0x50 [ 12.375099] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 12.375394] remove_element+0x11e/0x190 [ 12.375592] mempool_alloc_preallocated+0x4d/0x90 [ 12.375783] mempool_uaf_helper+0x96/0x400 [ 12.375977] mempool_kmalloc_uaf+0xef/0x140 [ 12.376123] kunit_try_run_case+0x1a5/0x480 [ 12.376307] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.376557] kthread+0x337/0x6f0 [ 12.376731] ret_from_fork+0x116/0x1d0 [ 12.377181] ret_from_fork_asm+0x1a/0x30 [ 12.377426] [ 12.377523] Freed by task 244: [ 12.377698] kasan_save_stack+0x45/0x70 [ 12.378005] kasan_save_track+0x18/0x40 [ 12.378165] kasan_save_free_info+0x3f/0x60 [ 12.378313] __kasan_mempool_poison_object+0x131/0x1d0 [ 12.378569] mempool_free+0x2ec/0x380 [ 12.378766] mempool_uaf_helper+0x11a/0x400 [ 12.379123] mempool_kmalloc_uaf+0xef/0x140 [ 12.379351] kunit_try_run_case+0x1a5/0x480 [ 12.379546] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.379842] kthread+0x337/0x6f0 [ 12.380013] ret_from_fork+0x116/0x1d0 [ 12.380227] ret_from_fork_asm+0x1a/0x30 [ 12.380427] [ 12.380502] The buggy address belongs to the object at ffff8881028b1000 [ 12.380502] which belongs to the cache kmalloc-128 of size 128 [ 12.381297] The buggy address is located 0 bytes inside of [ 12.381297] freed 128-byte region [ffff8881028b1000, ffff8881028b1080) [ 12.381919] [ 12.381999] The buggy address belongs to the physical page: [ 12.382312] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028b1 [ 12.382686] flags: 0x200000000000000(node=0|zone=2) [ 12.383108] page_type: f5(slab) [ 12.383236] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.383660] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.384251] page dumped because: kasan: bad access detected [ 12.384510] [ 12.384616] Memory state around the buggy address: [ 12.385049] ffff8881028b0f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.385372] ffff8881028b0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.385711] >ffff8881028b1000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.385992] ^ [ 12.386111] ffff8881028b1080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.386420] ffff8881028b1100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.386856] ==================================================================