Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.611998] ================================================================== [ 19.612359] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.612359] [ 19.612463] Use-after-free read at 0x00000000e3df1cbe (in kfence-#86): [ 19.612776] test_use_after_free_read+0x114/0x248 [ 19.612847] kunit_try_run_case+0x170/0x3f0 [ 19.612891] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.613066] kthread+0x328/0x630 [ 19.613118] ret_from_fork+0x10/0x20 [ 19.613196] [ 19.613308] kfence-#86: 0x00000000e3df1cbe-0x000000007fe10ce8, size=32, cache=test [ 19.613308] [ 19.613386] allocated by task 298 on cpu 1 at 19.611034s (0.002331s ago): [ 19.613466] test_alloc+0x230/0x628 [ 19.613509] test_use_after_free_read+0xd0/0x248 [ 19.613862] kunit_try_run_case+0x170/0x3f0 [ 19.614030] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.614117] kthread+0x328/0x630 [ 19.614317] ret_from_fork+0x10/0x20 [ 19.614707] [ 19.614987] freed by task 298 on cpu 1 at 19.611094s (0.003799s ago): [ 19.615362] test_use_after_free_read+0xf0/0x248 [ 19.615556] kunit_try_run_case+0x170/0x3f0 [ 19.615908] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.616078] kthread+0x328/0x630 [ 19.616120] ret_from_fork+0x10/0x20 [ 19.616318] [ 19.616600] CPU: 1 UID: 0 PID: 298 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 19.616712] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.616821] Hardware name: linux,dummy-virt (DT) [ 19.616977] ================================================================== [ 19.507746] ================================================================== [ 19.507845] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x114/0x248 [ 19.507845] [ 19.508567] Use-after-free read at 0x0000000085a1795e (in kfence-#85): [ 19.508671] test_use_after_free_read+0x114/0x248 [ 19.509019] kunit_try_run_case+0x170/0x3f0 [ 19.509081] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.509164] kthread+0x328/0x630 [ 19.509215] ret_from_fork+0x10/0x20 [ 19.509525] [ 19.509628] kfence-#85: 0x0000000085a1795e-0x00000000bb32d74a, size=32, cache=kmalloc-32 [ 19.509628] [ 19.509687] allocated by task 296 on cpu 1 at 19.507178s (0.002505s ago): [ 19.509772] test_alloc+0x29c/0x628 [ 19.510105] test_use_after_free_read+0xd0/0x248 [ 19.510241] kunit_try_run_case+0x170/0x3f0 [ 19.510286] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.510330] kthread+0x328/0x630 [ 19.510625] ret_from_fork+0x10/0x20 [ 19.510824] [ 19.511423] freed by task 296 on cpu 1 at 19.507521s (0.003583s ago): [ 19.512227] test_use_after_free_read+0x1c0/0x248 [ 19.512397] kunit_try_run_case+0x170/0x3f0 [ 19.512461] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.512513] kthread+0x328/0x630 [ 19.512603] ret_from_fork+0x10/0x20 [ 19.512685] [ 19.512753] CPU: 1 UID: 0 PID: 296 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 19.512844] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.512884] Hardware name: linux,dummy-virt (DT) [ 19.512932] ==================================================================
[ 17.333686] ================================================================== [ 17.334133] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.334133] [ 17.335072] Use-after-free read at 0x(____ptrval____) (in kfence-#69): [ 17.335712] test_use_after_free_read+0x129/0x270 [ 17.335969] kunit_try_run_case+0x1a5/0x480 [ 17.336380] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.336668] kthread+0x337/0x6f0 [ 17.336982] ret_from_fork+0x116/0x1d0 [ 17.337296] ret_from_fork_asm+0x1a/0x30 [ 17.337599] [ 17.337720] kfence-#69: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=kmalloc-32 [ 17.337720] [ 17.338257] allocated by task 313 on cpu 1 at 17.333418s (0.004837s ago): [ 17.338734] test_alloc+0x364/0x10f0 [ 17.338997] test_use_after_free_read+0xdc/0x270 [ 17.339330] kunit_try_run_case+0x1a5/0x480 [ 17.339518] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.339934] kthread+0x337/0x6f0 [ 17.340189] ret_from_fork+0x116/0x1d0 [ 17.340389] ret_from_fork_asm+0x1a/0x30 [ 17.340827] [ 17.341080] freed by task 313 on cpu 1 at 17.333493s (0.007497s ago): [ 17.341594] test_use_after_free_read+0x1e7/0x270 [ 17.341843] kunit_try_run_case+0x1a5/0x480 [ 17.342189] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.342547] kthread+0x337/0x6f0 [ 17.342838] ret_from_fork+0x116/0x1d0 [ 17.343016] ret_from_fork_asm+0x1a/0x30 [ 17.343457] [ 17.343688] CPU: 1 UID: 0 PID: 313 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.344148] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.344637] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.345033] ================================================================== [ 17.437584] ================================================================== [ 17.437979] BUG: KFENCE: use-after-free read in test_use_after_free_read+0x129/0x270 [ 17.437979] [ 17.438914] Use-after-free read at 0x(____ptrval____) (in kfence-#70): [ 17.439217] test_use_after_free_read+0x129/0x270 [ 17.439535] kunit_try_run_case+0x1a5/0x480 [ 17.439691] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.439868] kthread+0x337/0x6f0 [ 17.439993] ret_from_fork+0x116/0x1d0 [ 17.440128] ret_from_fork_asm+0x1a/0x30 [ 17.440494] [ 17.440666] kfence-#70: 0x(____ptrval____)-0x(____ptrval____), size=32, cache=test [ 17.440666] [ 17.441409] allocated by task 315 on cpu 0 at 17.437459s (0.003948s ago): [ 17.442113] test_alloc+0x2a6/0x10f0 [ 17.442454] test_use_after_free_read+0xdc/0x270 [ 17.442710] kunit_try_run_case+0x1a5/0x480 [ 17.442859] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.443034] kthread+0x337/0x6f0 [ 17.443154] ret_from_fork+0x116/0x1d0 [ 17.443513] ret_from_fork_asm+0x1a/0x30 [ 17.443864] [ 17.444021] freed by task 315 on cpu 0 at 17.437494s (0.006524s ago): [ 17.444623] test_use_after_free_read+0xfb/0x270 [ 17.444797] kunit_try_run_case+0x1a5/0x480 [ 17.444946] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 17.445213] kthread+0x337/0x6f0 [ 17.445381] ret_from_fork+0x116/0x1d0 [ 17.445548] ret_from_fork_asm+0x1a/0x30 [ 17.445716] [ 17.445812] CPU: 0 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 17.446298] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.446436] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 17.446991] ==================================================================