Kernel panic due to an invalid instruction address %rip while loading the [falcon_lsm_pinned] module.

Solution Verified - Updated -

Issue

  • The system crashed due to an invalid instruction address (IP: [<(null)>] (null)) with the following call traces.
[603675.853695] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[603675.853741] PGD 0 P4D 0 
[603675.853757] Oops: 0010 [#1] SMP PTI
[603675.853773] CPU: 57 PID: 1475968 Comm: rpm Kdump: loaded Tainted: PWOE ----------- 4.18.0-425.13.1.el8_7.x86_64 #1
[603675.853812] Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 11/23/2021
[603675.853837] RIP: 0010:0x0
[603675.853854] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[603675.853877] RSP: 0018:ffffb0db0e967ee0 EFLAGS: 00010246
[603675.853897] RAX: 0000000000000000 RBX: ffffb0db0e967f58 RCX: 00000000643a44ff
[603675.853920] RDX: 0000000042d77f74 RSI: 0000000000000000 RDI: ffffb0db0e967f58
[603675.853942] RBP: ffffb0db0e967f58 R08: 0000000000000000 R09: 0000000000000000
[603675.853973] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffff9c
[603675.853993] R13: 000055dacc9faa40 R14: 0000000000000000 R15: 0000000000000000
[603675.854013] FS:  00007fcb98a23780(0000) GS:ffffa0683fb00000(0000) knlGS:0000000000000000
[603675.854035] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[603675.854052] CR2: ffffffffffffffd6 CR3: 00000046f72b2003 CR4: 00000000001706e0
[603675.854071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[603675.854090] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[603675.854110] Call Trace:
[603675.854124]  unload_network_ops_symbols+0x7372/0x79b0 [falcon_lsm_pinned_14812]
[603675.854156]  ? do_syscall_64+0x5b/0x1b0
[603675.854175]  ? entry_SYSCALL_64_after_hwframe+0x61/0xc6
[603675.854200] Modules linked in: falcon_lsm_pinned_14812(E+) tcp_diag udp_diag inet_diag nf_tables nfnetlink binfmt_misc rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache

Environment

  • Red Hat Enterprise Linux release 8.7 (Ootpa)
  • Unsigned (E) kernel module: [falcon_lsm_pinned]

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