kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle page fault for address: ffff8881129f92c0 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0011) - permissions violation PGD 8e01067 P4D 8e01067 PUD 100ee0063 PMD 112804063 PTE 80000001129f9063 Oops: Oops: 0011 [#1] PREEMPT SMP PTI CPU: 0 UID: 0 PID: 9532 Comm: syz.1.2543 Not tainted 6.11.0-rc3-syzkaller-00060-gd07b43284ab3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:0xffff8881129f92c0 Code: 00 00 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <01> 00 00 00 00 00 00 00 46 00 00 00 46 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc9000131bba8 EFLAGS: 00010286 RAX: ffff8881078fbc00 RBX: ffffc9000131bc00 RCX: ffffffff814adc50 RDX: ffff88810430b480 RSI: 0000000000000002 RDI: ffff888121abbea0 RBP: ffff88811dedee70 R08: 0001888121abbeb7 R09: 0000000000000000 R10: 0001ffffffffffff R11: ffff8881129f92c0 R12: ffff88810c4ca848 R13: ffff888121abbea0 R14: ffff88810430b480 R15: ffff88810c4ca870 FS: 00007f9a54d976c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8881129f92c0 CR3: 000000010749e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: Modules linked in: CR2: ffff8881129f92c0 ---[ end trace 0000000000000000 ]--- RIP: 0010:0xffff8881129f92c0 Code: 00 00 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <01> 00 00 00 00 00 00 00 46 00 00 00 46 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc9000131bba8 EFLAGS: 00010286 RAX: ffff8881078fbc00 RBX: ffffc9000131bc00 RCX: ffffffff814adc50 RDX: ffff88810430b480 RSI: 0000000000000002 RDI: ffff888121abbea0 RBP: ffff88811dedee70 R08: 0001888121abbeb7 R09: 0000000000000000 R10: 0001ffffffffffff R11: ffff8881129f92c0 R12: ffff88810c4ca848 R13: ffff888121abbea0 R14: ffff88810430b480 R15: ffff88810c4ca870 FS: 00007f9a54d976c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8881129f92c0 CR3: 000000010749e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: ff 00 incl (%rax) 28: 00 00 add %al,(%rax) * 2a: 01 00 add %eax,(%rax) <-- trapping instruction 2c: 00 00 add %al,(%rax) 2e: 00 00 add %al,(%rax) 30: 00 00 add %al,(%rax) 32: 46 00 00 rex.RX add %r8b,(%rax) 35: 00 46 00 add %al,0x0(%rsi)