Warning: Permanently added '10.128.1.101' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 88.037629][ T5844] ================================================================== [ 88.045740][ T5844] BUG: KASAN: use-after-free in __crypto_shash_import+0x26a/0x2a0 [ 88.053581][ T5844] Write of size 1 at addr ffff88817d6f4347 by task syz-executor266/5844 [ 88.061912][ T5844] [ 88.064259][ T5844] CPU: 0 UID: 0 PID: 5844 Comm: syz-executor266 Not tainted 6.15.0-rc7-next-20250523-syzkaller #0 PREEMPT(full) [ 88.064278][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.064293][ T5844] Call Trace: [ 88.064301][ T5844] [ 88.064308][ T5844] dump_stack_lvl+0x189/0x250 [ 88.064325][ T5844] ? __virt_addr_valid+0x1c8/0x5c0 [ 88.064340][ T5844] ? rcu_is_watching+0x15/0xb0 [ 88.064354][ T5844] ? __kasan_check_byte+0x12/0x40 [ 88.064369][ T5844] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.064382][ T5844] ? rcu_is_watching+0x15/0xb0 [ 88.064395][ T5844] ? lock_release+0x4b/0x3e0 [ 88.064417][ T5844] ? __virt_addr_valid+0x1c8/0x5c0 [ 88.064431][ T5844] ? __virt_addr_valid+0x4a5/0x5c0 [ 88.064447][ T5844] print_report+0xd2/0x2b0 [ 88.064466][ T5844] ? __crypto_shash_import+0x26a/0x2a0 [ 88.064486][ T5844] kasan_report+0x118/0x150 [ 88.064500][ T5844] ? __local_bh_enable_ip+0x12d/0x1c0 [ 88.064523][ T5844] ? __crypto_shash_import+0x26a/0x2a0 [ 88.064545][ T5844] __crypto_shash_import+0x26a/0x2a0 [ 88.064568][ T5844] crypto_shash_import+0x84/0x230 [ 88.064588][ T5844] hash_accept+0x1fb/0x280 [ 88.064605][ T5844] do_accept+0x48f/0x680 [ 88.064632][ T5844] ? __pfx_do_accept+0x10/0x10 [ 88.064661][ T5844] __sys_accept4+0x11c/0x1c0 [ 88.064683][ T5844] ? __pfx___sys_accept4+0x10/0x10 [ 88.064708][ T5844] __x64_sys_accept+0x7d/0x90 [ 88.064729][ T5844] do_syscall_64+0xfa/0x3b0 [ 88.064751][ T5844] ? lockdep_hardirqs_on+0x9c/0x150 [ 88.064767][ T5844] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.064782][ T5844] ? clear_bhb_loop+0x60/0xb0 [ 88.064799][ T5844] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.064813][ T5844] RIP: 0033:0x7f9323bceb39 [ 88.064834][ T5844] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 88.064846][ T5844] RSP: 002b:00007ffddba76308 EFLAGS: 00000246 ORIG_RAX: 000000000000002b [ 88.064862][ T5844] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f9323bceb39 [ 88.064874][ T5844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 88.064882][ T5844] RBP: 00000000000157b3 R08: 0000000000000006 R09: 0000000000000006 [ 88.064891][ T5844] R10: 0000000000000006 R11: 0000000000000246 R12: 00007ffddba7631c [ 88.064901][ T5844] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 88.064917][ T5844] [ 88.064922][ T5844] [ 88.304554][ T5844] The buggy address belongs to the physical page: [ 88.310967][ T5844] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17d6f4 [ 88.319856][ T5844] flags: 0x57ff00000000000(node=1|zone=2|lastcpupid=0x7ff) [ 88.327064][ T5844] raw: 057ff00000000000 ffffea0005f5bd08 ffffea0005f5bd08 0000000000000000 [ 88.335650][ T5844] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 88.344230][ T5844] page dumped because: kasan: bad access detected [ 88.350652][ T5844] page_owner info is not present (never set?) [ 88.356729][ T5844] [ 88.359064][ T5844] Memory state around the buggy address: [ 88.364704][ T5844] ffff88817d6f4200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 88.372779][ T5844] ffff88817d6f4280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 88.380841][ T5844] >ffff88817d6f4300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 88.388905][ T5844] ^ [ 88.395053][ T5844] ffff88817d6f4380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 88.403140][ T5844] ffff88817d6f4400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 88.411196][ T5844] ================================================================== [ 88.420188][ T5844] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 88.427422][ T5844] CPU: 0 UID: 0 PID: 5844 Comm: syz-executor266 Not tainted 6.15.0-rc7-next-20250523-syzkaller #0 PREEMPT(full) [ 88.439334][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.449390][ T5844] Call Trace: [ 88.452669][ T5844] [ 88.455602][ T5844] dump_stack_lvl+0x99/0x250 [ 88.460212][ T5844] ? __asan_memcpy+0x40/0x70 [ 88.464808][ T5844] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.470008][ T5844] ? __pfx__printk+0x10/0x10 [ 88.474604][ T5844] panic+0x2db/0x790 [ 88.478531][ T5844] ? __pfx_panic+0x10/0x10 [ 88.482982][ T5844] ? _raw_spin_unlock_irqrestore+0xfd/0x110 [ 88.488887][ T5844] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 88.495227][ T5844] ? print_memory_metadata+0x314/0x400 [ 88.500708][ T5844] ? __crypto_shash_import+0x26a/0x2a0 [ 88.506177][ T5844] check_panic_on_warn+0x89/0xb0 [ 88.511121][ T5844] ? __crypto_shash_import+0x26a/0x2a0 [ 88.516587][ T5844] end_report+0x78/0x160 [ 88.520847][ T5844] kasan_report+0x129/0x150 [ 88.525365][ T5844] ? __local_bh_enable_ip+0x12d/0x1c0 [ 88.530764][ T5844] ? __crypto_shash_import+0x26a/0x2a0 [ 88.536235][ T5844] __crypto_shash_import+0x26a/0x2a0 [ 88.541561][ T5844] crypto_shash_import+0x84/0x230 [ 88.546626][ T5844] hash_accept+0x1fb/0x280 [ 88.551064][ T5844] do_accept+0x48f/0x680 [ 88.555350][ T5844] ? __pfx_do_accept+0x10/0x10 [ 88.560139][ T5844] __sys_accept4+0x11c/0x1c0 [ 88.564737][ T5844] ? __pfx___sys_accept4+0x10/0x10 [ 88.569855][ T5844] __x64_sys_accept+0x7d/0x90 [ 88.574537][ T5844] do_syscall_64+0xfa/0x3b0 [ 88.579066][ T5844] ? lockdep_hardirqs_on+0x9c/0x150 [ 88.584271][ T5844] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.590336][ T5844] ? clear_bhb_loop+0x60/0xb0 [ 88.595015][ T5844] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.600938][ T5844] RIP: 0033:0x7f9323bceb39 [ 88.605364][ T5844] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 88.624973][ T5844] RSP: 002b:00007ffddba76308 EFLAGS: 00000246 ORIG_RAX: 000000000000002b [ 88.633408][ T5844] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f9323bceb39 [ 88.641383][ T5844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 88.649355][ T5844] RBP: 00000000000157b3 R08: 0000000000000006 R09: 0000000000000006 [ 88.657329][ T5844] R10: 0000000000000006 R11: 0000000000000246 R12: 00007ffddba7631c [ 88.665299][ T5844] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 88.673295][ T5844] [ 88.676640][ T5844] Kernel Offset: disabled [ 88.680974][ T5844] Rebooting in 86400 seconds..