NULL pointer dereference in __vm_enough_memory
Issue
- NULL pointer dereference occurred inside the
__vm_enough_memory()function:
#0 [ffff811554685420] crash_kexec at ffffffff800b099c
#1 [ffff8115546854e0] __die at ffffffff80065137
#2 [ffff811554685520] do_page_fault at ffffffff80067484
#3 [ffff811554685610] error_exit at ffffffff8005dde9
[exception RIP: __vm_enough_memory+0xd2]
RIP: ffffffff80035b6b RSP: ffff8115546856c0 RFLAGS: 00010202
RAX: 0000000000a235ee RBX: 000000003f5d10f8 RCX: 0000000000a235ee
RDX: 0000000000000000 RSI: 0000000000000064 RDI: fffffffffffffe56
RBP: 0000000000000001 R8: ffff811554685660 R9: 0000000000000000
R10: ffff81107837d8a0 R11: 0000000000000048 R12: 0000000000000001
R13: 0000000000000000 R14: 00000000000000f6 R15: 0000000000000000
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000
#4 [ffff8115546856e8] shmem_getpage at ffffffff800dd122
#5 [ffff811554685808] shmem_nopage at ffffffff800dd9cb
#6 [ffff811554685828] __handle_mm_fault at ffffffff80008972
#7 [ffff8115546858e8] get_user_pages at ffffffff800d126f
#8 [ffff811554685938] vx_dio_physio at ffffffff8868452a [vxfs]
#9 [ffff811554685a58] vx_dio_rdwri at ffffffff885ad699 [vxfs]
#10 [ffff811554685c68] vx_dio_read at ffffffff8866dffb [vxfs]
#11 [ffff811554685d18] vx_read1 at ffffffff8866e598 [vxfs]
#12 [ffff811554685da8] vx_vop_read at ffffffff8865695b [vxfs]
#13 [ffff811554685e18] vx_naio_do_work at ffffffff886415f9 [vxfs]
#14 [ffff811554685ee8] vx_naio_worker at ffffffff8864199a [vxfs]
#15 [ffff811554685f08] vx_kthread_init at ffffffff88651474 [vxfs]
#16 [ffff811554685f48] kernel_thread at ffffffff8005dfb1
Environment
- Red Hat Enterprise Linux 5.8
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