Kernel panic due to a single bit-flip with a Bad RIP value

Solution Unverified - Updated -

Issue

  • Kernel panic with the following call traces due to a Bad RIP value.
[ 5809.181897] BUG: unable to handle kernel paging request at ffffffffe0c27e20
[ 5809.182069] IP: [<ffffffffe0c27e20>] 0xffffffffe0c27e20
[ 5809.182301] PGD 332ce14067 PUD 332ce16067 PMD 0 
[ 5809.182466] Oops: 0010 [#1] SMP 
[ 5809.182644] Modules linked in: ...
[ 5809.186125] CPU: 21 PID: 8436 Comm: net_sched Kdump: loaded Tainted: POE  ------------ T 3.10.0-1160.95.1.el7.x86_64 #1
[ 5809.186437] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 08/04/2022
[ 5809.186818] task: ffff905a63fe3180 ti: ffff905a59540000 task.ti: ffff905a59540000
[ 5809.187141] RIP: 0010:[<ffffffffe0c27e20>]  [<ffffffffe0c27e20>] 0xffffffffe0c27e20
[ 5809.187547] RSP: 0018:ffff905a59543e00  EFLAGS: 00010286
[ 5809.187704] RAX: 0000000000000080 RBX: ffff905a63fe3180 RCX: 0000000000000000
[ 5809.187912] RDX: ffff905a59541fd8 RSI: ffff905a63fe3180 RDI: ffff905a63fe3180
[ 5809.188073] RBP: ffff905a59543e58 R08: ffff905a59540000 R09: 0000000000000001
[ 5809.188234] R10: 0000000000000001 R11: 7fffffffffffffff R12: ffffffffc0cc5d08
[ 5809.188429] R13: ffffffffc0cc5cf0 R14: 0000000000000000 R15: ffff908a343d9198
[ 5809.188592] FS:  0000000000000000(0000) GS:ffff90a27f240000(0000) knlGS:0000000000000000
[ 5809.188901] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5809.189059] CR2: ffffffffe0c27e20 CR3: 000000332ce10000 CR4: 00000000003607e0
[ 5809.189252] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 5809.189457] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 5809.189632] Call Trace:
[ 5809.189789]  [<ffffffff8cee1170>] ? wake_up_state+0x20/0x20
[ 5809.189978]  [<ffffffffc0c2b252>] mosMitSchedThrd_ThrdEntry+0x252/0x500 [scini]
[ 5809.190301]  [<ffffffffc0c279b0>] ? mosTicks_DestroyEnvSpecific+0x10/0x10 [scini]
[ 5809.190657]  [<ffffffffc0c279d0>] mosOsThrd_Entry+0x20/0x50 [scini]
[ 5809.194542]  [<ffffffff8cecb621>] kthread+0xd1/0xe0
[ 5809.194701]  [<ffffffff8cecb550>] ? insert_kthread_work+0x40/0x40
[ 5809.194864]  [<ffffffff8d5c51f7>] ret_from_fork_nospec_begin+0x21/0x21
[ 5809.195026]  [<ffffffff8cecb550>] ? insert_kthread_work+0x40/0x40
[ 5809.195220] Code:  Bad RIP value.
[ 5809.195400] RIP  [<ffffffffe0c27e20>] 0xffffffffe0c27e20
[ 5809.195597]  RSP <ffff905a59543e00>
[ 5809.195784] CR2: ffffffffe0c27e20

Environment

  • Red Hat Enterprise Linux
  • Intel(R) Xeon(R) CPU E5-2650

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