[linux-next][mainline/master] [IPR] OOPs kernel crash while performing IPR test

[Tasmiya Nalatwad]

Greetings,

[linux-next][mainline/master] [IPR] OOPs kernel crash while performing 
IPR test

--- Traces ---
[65818.211823] Kernel attempted to read user page (380) - exploit 
attempt? (uid: 0)
[65818.211836] BUG: Kernel NULL pointer dereference on read at 0x00000380
[65818.211840] Faulting instruction address: 0xc000000000f5f2e4
[65818.211844] Oops: Kernel access of bad area, sig: 11 [#1]
[65818.211846] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries
[65818.211850] Modules linked in: rpadlpar_io rpaphp nfnetlink xsk_diag 
bonding tls rfkill sunrpc ses enclosure scsi_transport_sas vmx_crypto 
pseries_rng binfmt_misc ip_tables ext4 mbcache jbd2 dm_service_time 
sd_mod t10_pi crc64_rocksoft crc64 sg ibmvfc scsi_transport_fc ibmveth 
ipr dm_multipath dm_mirror dm_region_hash dm_log dm_mod fuse
[65818.211879] CPU: 16 PID: 613 Comm: kworker/16:3 Kdump: loaded Not 
tainted 6.5.0-rc7-next-20230824-auto #1
[65818.211883] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 
0xf000006 of:IBM,FW1030.30 (NH1030_062) hv:phyp pSeries
[65818.211887] Workqueue: events sg_remove_sfp_usercontext [sg]
[65818.211894] NIP:  c000000000f5f2e4 LR: c000000000f5f2d8 CTR: 
c00000000032df70
[65818.211897] REGS: c0000000081c7a10 TRAP: 0300   Not tainted 
(6.5.0-rc7-next-20230824-auto)
[65818.211900] MSR:  800000000280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  
CR: 28000882  XER: 20040000
[65818.211909] CFAR: c000000000f5b0a4 DAR: 0000000000000380 DSISR: 
40000000 IRQMASK: 0
[65818.211909] GPR00: c000000000f5f2d8 c0000000081c7cb0 c000000001451300 
0000000000000000
[65818.211909] GPR04: 00000000000000c0 00000000c0000000 c000000006c5a298 
98a2c506000000c0
[65818.211909] GPR08: c00000006408ab00 c0000000022a3515 0000000000000000 
c008000000327d60
[65818.211909] GPR12: c00000000032df70 c000000c1bc93f00 c000000000197cc8 
c000000008797500
[65818.211909] GPR16: 0000000000000000 0000000000000000 0000000000000000 
c000000003071ab0
[65818.211909] GPR20: c000000003494c05 c000000c11340040 0000000000000000 
c0000000b9bb4030
[65818.211909] GPR24: c0000000b9bb4000 c00000005e8627c0 0000000000000000 
c000000c19b91e00
[65818.211909] GPR28: c0000000b9bb5328 c00000005e8627c0 0000000000000380 
0000000000000380
[65818.211946] NIP [c000000000f5f2e4] mutex_lock+0x34/0x90
[65818.211953] LR [c000000000f5f2d8] mutex_lock+0x28/0x90
[65818.211957] Call Trace:
[65818.211959] [c0000000081c7cb0] [c000000000f5f2d8] 
mutex_lock+0x28/0x90 (unreliable)
[65818.211966] [c0000000081c7ce0] [c00000000032df9c] 
blk_trace_remove+0x2c/0x80
[65818.211971] [c0000000081c7d10] [c0080000003205fc] 
sg_device_destroy+0x44/0x110 [sg]
[65818.211976] [c0000000081c7d90] [c008000000322988] 
sg_remove_sfp_usercontext+0x1d0/0x2c0 [sg]
[65818.211981] [c0000000081c7e40] [c000000000188010] 
process_scheduled_works+0x230/0x4f0
[65818.211987] [c0000000081c7f10] [c00000000018b044] 
worker_thread+0x1e4/0x500
[65818.211992] [c0000000081c7f90] [c000000000197df8] kthread+0x138/0x140
[65818.211996] [c0000000081c7fe0] [c00000000000df98] 
start_kernel_thread+0x14/0x18
[65818.212000] Code: 38422050 7c0802a6 60000000 7c0802a6 fbe1fff8 
7c7f1b78 f8010010 f821ffd1 4bffbd95 60000000 39400000 e90d0908 
<7d20f8a8> 7c295000 40c20010 7d00f9ad
[65818.212013] ---[ end trace 0000000000000000 ]---

--
Regards,
Tasmiya Nalatwad
IBM Linux Technology Center