Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 48.840101] ================================================================== [ 48.840157] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 48.840157] [ 48.840247] Use-after-free read at 0x0000000084f60870 (in kfence-#148): [ 48.840297] test_krealloc+0x51c/0x830 [ 48.840344] kunit_try_run_case+0x170/0x3f0 [ 48.840402] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.840446] kthread+0x328/0x630 [ 48.840488] ret_from_fork+0x10/0x20 [ 48.840528] [ 48.840553] kfence-#148: 0x0000000084f60870-0x0000000060432a82, size=32, cache=kmalloc-32 [ 48.840553] [ 48.840606] allocated by task 337 on cpu 1 at 48.839403s (0.001200s ago): [ 48.840688] test_alloc+0x29c/0x628 [ 48.840731] test_krealloc+0xc0/0x830 [ 48.840769] kunit_try_run_case+0x170/0x3f0 [ 48.840807] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.840851] kthread+0x328/0x630 [ 48.840887] ret_from_fork+0x10/0x20 [ 48.840927] [ 48.840952] freed by task 337 on cpu 1 at 48.839689s (0.001259s ago): [ 48.841015] krealloc_noprof+0x148/0x360 [ 48.841055] test_krealloc+0x1dc/0x830 [ 48.841094] kunit_try_run_case+0x170/0x3f0 [ 48.841132] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.841176] kthread+0x328/0x630 [ 48.841210] ret_from_fork+0x10/0x20 [ 48.841250] [ 48.841296] CPU: 1 UID: 0 PID: 337 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 48.841374] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.841405] Hardware name: linux,dummy-virt (DT) [ 48.841441] ==================================================================
[ 49.064285] ================================================================== [ 49.064762] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 49.064762] [ 49.065120] Use-after-free read at 0x(____ptrval____) (in kfence-#132): [ 49.065396] test_krealloc+0x6fc/0xbe0 [ 49.065595] kunit_try_run_case+0x1a5/0x480 [ 49.066177] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.066428] kthread+0x337/0x6f0 [ 49.066587] ret_from_fork+0x116/0x1d0 [ 49.066738] ret_from_fork_asm+0x1a/0x30 [ 49.066957] [ 49.067064] kfence-#132: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 49.067064] [ 49.067424] allocated by task 355 on cpu 1 at 49.063665s (0.003756s ago): [ 49.068260] test_alloc+0x364/0x10f0 [ 49.068403] test_krealloc+0xad/0xbe0 [ 49.068798] kunit_try_run_case+0x1a5/0x480 [ 49.069001] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.069357] kthread+0x337/0x6f0 [ 49.069640] ret_from_fork+0x116/0x1d0 [ 49.069833] ret_from_fork_asm+0x1a/0x30 [ 49.070145] [ 49.070233] freed by task 355 on cpu 1 at 49.063922s (0.006309s ago): [ 49.070520] krealloc_noprof+0x108/0x340 [ 49.070899] test_krealloc+0x226/0xbe0 [ 49.071088] kunit_try_run_case+0x1a5/0x480 [ 49.071419] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 49.071753] kthread+0x337/0x6f0 [ 49.071922] ret_from_fork+0x116/0x1d0 [ 49.072096] ret_from_fork_asm+0x1a/0x30 [ 49.072273] [ 49.072391] CPU: 1 UID: 0 PID: 355 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 49.073134] Tainted: [B]=BAD_PAGE, [N]=TEST [ 49.073304] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 49.073866] ==================================================================