Date
Dec. 5, 2024, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.131681] ================================================================== [ 33.132630] BUG: KASAN: slab-use-after-free in kasan_strings+0x838/0x8d8 [ 33.133396] Read of size 1 at addr fff00000c63d1e50 by task kunit_try_catch/248 [ 33.134391] [ 33.134666] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 33.135649] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.137270] Hardware name: linux,dummy-virt (DT) [ 33.138281] Call trace: [ 33.138949] show_stack+0x20/0x38 (C) [ 33.139627] dump_stack_lvl+0x8c/0xd0 [ 33.140347] print_report+0x118/0x5e0 [ 33.141240] kasan_report+0xc8/0x118 [ 33.141964] __asan_report_load1_noabort+0x20/0x30 [ 33.142774] kasan_strings+0x838/0x8d8 [ 33.143480] kunit_try_run_case+0x14c/0x3d0 [ 33.144266] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.145103] kthread+0x24c/0x2d0 [ 33.145592] ret_from_fork+0x10/0x20 [ 33.146146] [ 33.146471] Allocated by task 248: [ 33.147099] kasan_save_stack+0x3c/0x68 [ 33.147722] kasan_save_track+0x20/0x40 [ 33.148554] kasan_save_alloc_info+0x40/0x58 [ 33.149245] __kasan_kmalloc+0xd4/0xd8 [ 33.150004] __kmalloc_cache_noprof+0x15c/0x3c0 [ 33.150747] kasan_strings+0xb0/0x8d8 [ 33.151454] kunit_try_run_case+0x14c/0x3d0 [ 33.152202] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.153058] kthread+0x24c/0x2d0 [ 33.153676] ret_from_fork+0x10/0x20 [ 33.154407] [ 33.154971] Freed by task 248: [ 33.155596] kasan_save_stack+0x3c/0x68 [ 33.156327] kasan_save_track+0x20/0x40 [ 33.157020] kasan_save_free_info+0x4c/0x78 [ 33.157671] __kasan_slab_free+0x6c/0x98 [ 33.158417] kfree+0x114/0x3c8 [ 33.159034] kasan_strings+0x124/0x8d8 [ 33.159710] kunit_try_run_case+0x14c/0x3d0 [ 33.160441] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.161372] kthread+0x24c/0x2d0 [ 33.162021] ret_from_fork+0x10/0x20 [ 33.162728] [ 33.163197] The buggy address belongs to the object at fff00000c63d1e40 [ 33.163197] which belongs to the cache kmalloc-32 of size 32 [ 33.164783] The buggy address is located 16 bytes inside of [ 33.164783] freed 32-byte region [fff00000c63d1e40, fff00000c63d1e60) [ 33.165465] [ 33.165638] The buggy address belongs to the physical page: [ 33.166049] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063d1 [ 33.167504] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.168592] page_type: f5(slab) [ 33.169342] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 33.170342] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 33.171323] page dumped because: kasan: bad access detected [ 33.172095] [ 33.172427] Memory state around the buggy address: [ 33.173468] fff00000c63d1d00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.174436] fff00000c63d1d80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.175520] >fff00000c63d1e00: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 33.176556] ^ [ 33.177154] fff00000c63d1e80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.178307] fff00000c63d1f00: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 33.179359] ==================================================================
[ 30.978077] ================================================================== [ 30.978710] BUG: KASAN: slab-use-after-free in kasan_strings+0xa0c/0xb60 [ 30.979579] Read of size 1 at addr ffff888102a07ed0 by task kunit_try_catch/266 [ 30.980505] [ 30.980858] CPU: 1 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 30.982219] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.982657] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 30.983759] Call Trace: [ 30.984420] <TASK> [ 30.984718] dump_stack_lvl+0x73/0xb0 [ 30.985250] print_report+0xd1/0x640 [ 30.985825] ? __virt_addr_valid+0x1db/0x2d0 [ 30.986444] ? kasan_complete_mode_report_info+0x64/0x200 [ 30.987160] kasan_report+0x102/0x140 [ 30.987488] ? kasan_strings+0xa0c/0xb60 [ 30.988389] ? kasan_strings+0xa0c/0xb60 [ 30.988865] __asan_report_load1_noabort+0x18/0x20 [ 30.989361] kasan_strings+0xa0c/0xb60 [ 30.989912] ? __pfx_kasan_strings+0x10/0x10 [ 30.990669] ? __schedule+0xc70/0x27e0 [ 30.991199] ? __pfx_read_tsc+0x10/0x10 [ 30.991787] ? ktime_get_ts64+0x86/0x230 [ 30.992373] kunit_try_run_case+0x1b3/0x490 [ 30.992897] ? __pfx_kunit_try_run_case+0x10/0x10 [ 30.993869] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 30.994576] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 30.995088] ? __kthread_parkme+0x82/0x160 [ 30.995544] ? preempt_count_sub+0x50/0x80 [ 30.996005] ? __pfx_kunit_try_run_case+0x10/0x10 [ 30.996750] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 30.997497] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.998013] kthread+0x257/0x310 [ 30.998442] ? __pfx_kthread+0x10/0x10 [ 30.999295] ret_from_fork+0x41/0x80 [ 30.999653] ? __pfx_kthread+0x10/0x10 [ 31.000058] ret_from_fork_asm+0x1a/0x30 [ 31.000448] </TASK> [ 31.001126] [ 31.001365] Allocated by task 266: [ 31.001608] kasan_save_stack+0x3d/0x60 [ 31.002325] kasan_save_track+0x18/0x40 [ 31.002909] kasan_save_alloc_info+0x3b/0x50 [ 31.003627] __kasan_kmalloc+0xb7/0xc0 [ 31.004455] __kmalloc_cache_noprof+0x184/0x410 [ 31.005165] kasan_strings+0xb9/0xb60 [ 31.005541] kunit_try_run_case+0x1b3/0x490 [ 31.006145] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.006645] kthread+0x257/0x310 [ 31.007232] ret_from_fork+0x41/0x80 [ 31.007674] ret_from_fork_asm+0x1a/0x30 [ 31.008415] [ 31.008695] Freed by task 266: [ 31.009129] kasan_save_stack+0x3d/0x60 [ 31.009432] kasan_save_track+0x18/0x40 [ 31.010184] kasan_save_free_info+0x3f/0x60 [ 31.010821] __kasan_slab_free+0x56/0x70 [ 31.011393] kfree+0x123/0x3f0 [ 31.011843] kasan_strings+0x13c/0xb60 [ 31.012209] kunit_try_run_case+0x1b3/0x490 [ 31.013247] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 31.013750] kthread+0x257/0x310 [ 31.014385] ret_from_fork+0x41/0x80 [ 31.014650] ret_from_fork_asm+0x1a/0x30 [ 31.015399] [ 31.015642] The buggy address belongs to the object at ffff888102a07ec0 [ 31.015642] which belongs to the cache kmalloc-32 of size 32 [ 31.017434] The buggy address is located 16 bytes inside of [ 31.017434] freed 32-byte region [ffff888102a07ec0, ffff888102a07ee0) [ 31.018544] [ 31.018898] The buggy address belongs to the physical page: [ 31.019639] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a07 [ 31.020629] flags: 0x200000000000000(node=0|zone=2) [ 31.021297] page_type: f5(slab) [ 31.021660] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 31.022519] raw: 0000000000000000 0000000000400040 00000000f5000000 0000000000000000 [ 31.023482] page dumped because: kasan: bad access detected [ 31.023936] [ 31.024200] Memory state around the buggy address: [ 31.024643] ffff888102a07d80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 31.025247] ffff888102a07e00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 31.026310] >ffff888102a07e80: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 31.027218] ^ [ 31.027816] ffff888102a07f00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 31.028643] ffff888102a07f80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 31.029368] ==================================================================