Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 51.534327] ================================================================== [ 51.534405] BUG: KFENCE: use-after-free read in test_krealloc+0x51c/0x830 [ 51.534405] [ 51.534488] Use-after-free read at 0x0000000008442b72 (in kfence-#152): [ 51.534540] test_krealloc+0x51c/0x830 [ 51.534585] kunit_try_run_case+0x170/0x3f0 [ 51.534628] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.534675] kthread+0x328/0x630 [ 51.534716] ret_from_fork+0x10/0x20 [ 51.534756] [ 51.534780] kfence-#152: 0x0000000008442b72-0x000000002418ac05, size=32, cache=kmalloc-32 [ 51.534780] [ 51.534835] allocated by task 339 on cpu 1 at 51.533680s (0.001152s ago): [ 51.534903] test_alloc+0x29c/0x628 [ 51.534942] test_krealloc+0xc0/0x830 [ 51.534981] kunit_try_run_case+0x170/0x3f0 [ 51.535022] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.535068] kthread+0x328/0x630 [ 51.535107] ret_from_fork+0x10/0x20 [ 51.535145] [ 51.535168] freed by task 339 on cpu 1 at 51.533936s (0.001228s ago): [ 51.535240] krealloc_noprof+0x148/0x360 [ 51.535280] test_krealloc+0x1dc/0x830 [ 51.535318] kunit_try_run_case+0x170/0x3f0 [ 51.535358] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.535403] kthread+0x328/0x630 [ 51.535442] ret_from_fork+0x10/0x20 [ 51.535480] [ 51.535523] CPU: 1 UID: 0 PID: 339 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 51.535602] Tainted: [B]=BAD_PAGE, [N]=TEST [ 51.535632] Hardware name: linux,dummy-virt (DT) [ 51.535667] ==================================================================
[ 48.508559] ================================================================== [ 48.509114] BUG: KFENCE: use-after-free read in test_krealloc+0x6fc/0xbe0 [ 48.509114] [ 48.509477] Use-after-free read at 0x(____ptrval____) (in kfence-#146): [ 48.509762] test_krealloc+0x6fc/0xbe0 [ 48.509948] kunit_try_run_case+0x1a5/0x480 [ 48.510100] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 48.510399] kthread+0x337/0x6f0 [ 48.510550] ret_from_fork+0x41/0x80 [ 48.510722] ret_from_fork_asm+0x1a/0x30 [ 48.510938] [ 48.511013] kfence-#146: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 48.511013] [ 48.511419] allocated by task 356 on cpu 0 at 48.507976s (0.003441s ago): [ 48.511710] test_alloc+0x364/0x10f0 [ 48.511913] test_krealloc+0xad/0xbe0 [ 48.512058] kunit_try_run_case+0x1a5/0x480 [ 48.512268] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 48.512513] kthread+0x337/0x6f0 [ 48.512651] ret_from_fork+0x41/0x80 [ 48.512800] ret_from_fork_asm+0x1a/0x30 [ 48.513011] [ 48.513094] freed by task 356 on cpu 0 at 48.508195s (0.004896s ago): [ 48.513338] krealloc_noprof+0x108/0x340 [ 48.513537] test_krealloc+0x226/0xbe0 [ 48.513729] kunit_try_run_case+0x1a5/0x480 [ 48.513936] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 48.514134] kthread+0x337/0x6f0 [ 48.514256] ret_from_fork+0x41/0x80 [ 48.514391] ret_from_fork_asm+0x1a/0x30 [ 48.514586] [ 48.514702] CPU: 0 UID: 0 PID: 356 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 48.515112] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.515251] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 48.515883] ==================================================================