2006614 - Signal 11 in bufdlink() during database encryption - ASE 16.0

Infected with signal 11 at  bufdlink() while holding a spinlock causes ASE to shutdown.

kernel  Current process (0x57b02be) infected with signal 11 (SIGSEGV)
kernel  Address 0x000000008042cef8 (bufdlink+0x78), siginfo (code, address) = (1, 0x0000000000000018)
kernel  **** Saved signal context (0x0000010030f6e080): ****
kernel  uc_flags: 0x2f, uc_link: 0x0
kernel  uc_sigmask: 0x126000 0x0 0x0 0x0
kernel  uc_stack: ss_sp: 0xffffffff7f800000, ss_size: 0x8388608, ss_flags: 0x0
kernel  General Registers (uc_mcontext.gregs):
kernel       PC : 000000008042cef8 (bufdlink+0x78)
kernel       Next PC : 000000008042cefc (bufdlink+0x7c)
kernel       CCR : 0000000000000055  Y : 0000000000000000
kernel       ASI : 0000000000000082  FPRS : 0000000000000005
kernel       g0 : 0000000000000000  g1 : 0000000040001008  g2 : 0000000000000014
kernel       g3 : 0000000000000341  g4 : 00000100b74ef4e8  g5 : 0000000000000341
kernel       g6 : 0000000000000000  g7 : ffffffff7c900240
kernel       o0 : 0000010f84ba8bc0  o1 : 0000000000000012  o2 : 0000000000000000
kernel       o3 : 0000000000000007  o4 : 0000000000000002  o5 : 0000000000000000
kernel       o6 : 0000010030f6dc61  o7 : 000000008041b4ec
kernel  Windowed Registers (from stack frame 0000010030f6e460):
kernel       l0 : 00000100f3104288  l1 : 0000010f84ba8bc0  l2 : 0000000000000000
kernel       l3 : 00000100069fb500  l4 : 0000000000010000  l5 : 00000100b7afe410
kernel       l6 : 0000000082814400  l7 : 0000000000000010
kernel       i0 : 0000000000000000  i1 : 0000000000000000  i2 : 0000010f84ba8bc0
kernel       i3 : 0000000000000000  i4 : 0000000000000002  i5 : 0000000000000000
kernel       i6 : 0000010030f6dde1  i7 : 00000000813656a4
kernel       previous stack frame : 0000010030f6e5e0
kernel  **** end of signal context ****
kernel  Spinlocks held by  kpid 91947710
kernel  Spinlock TEST_DATA_sys1 at address 00000100069fb500 owned by 91947710
kernel  ******** End of stack trace, spid 18, kpid 91947710, suid 0
kernel  End of spinlock display.
kernel  pc: 0x0000000081554d9c pcstkwalk+0x18
kernel  pc: 0x0000000081554be4 ucstkgentrace+0x23c
kernel  pc: 0x0000000081550fc4 ucbacktrace+0xd0
kernel  pc: 0x00000000807f7894 terminate_process+0x8f8
kernel  pc: 0x000000008159d778 kisignal+0x438
kernel  pc: 0x000000008042cef8 bufdlink+0x78
kernel  pc: 0x00000000813656a4 ea_encrypt_decrypt_pages+0x51c
kernel  pc: 0x0000000081365f2c worker_hdlr+0x2f4
kernel  pc: 0x000000008158fa9c kw_exec+0x80
kernel  pc: 0x000000008158f570 kw_member+0x1c4
kernel  pc: 0x00000000815838b8 _coldstart
kernel  end of stack trace, spid 18, kpid 91947710, suid 0
kernel  ueshutdown: exiting

SAP Adaptive Server Enterprise (ASE) 16.0

bufdlink , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed