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Avoid memory corruption with non-finite inputs in ?GEEV #1129

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Merged
merged 4 commits into from
Jun 13, 2025
Merged

Avoid memory corruption with non-finite inputs in ?GEEV #1129

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8f2d86a
Fix potential memory corruption if INFO<0
martin-frbg May 17, 2025
4ac1c69
Update dgeev.f
martin-frbg May 17, 2025
76ce505
Avoid memory corruption if INFO<0
martin-frbg May 17, 2025
d724843
Avoid memory corruption if INFO<0
martin-frbg May 17, 2025
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2 changes: 1 addition & 1 deletion SRC/cgeev.f
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Original file line number Diff line number Diff line change
Expand Up @@ -496,7 +496,7 @@ SUBROUTINE CGEEV( JOBVL, JOBVR, N, A, LDA, W, VL, LDVL, VR,
* Undo scaling if necessary
*
50 CONTINUE
IF( SCALEA ) THEN
IF( SCALEA .AND. INFO.GE.0) THEN
CALL CLASCL( 'G', 0, 0, CSCALE, ANRM, N-INFO, 1,
$ W( INFO+1 ),
$ MAX( N-INFO, 1 ), IERR )
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2 changes: 1 addition & 1 deletion SRC/dgeev.f
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Expand Up @@ -517,7 +517,7 @@ SUBROUTINE DGEEV( JOBVL, JOBVR, N, A, LDA, WR, WI, VL, LDVL,
* Undo scaling if necessary
*
50 CONTINUE
IF( SCALEA ) THEN
IF( SCALEA .AND. INFO.GE.0 ) THEN
CALL DLASCL( 'G', 0, 0, CSCALE, ANRM, N-INFO, 1,
$ WR( INFO+1 ),
$ MAX( N-INFO, 1 ), IERR )
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2 changes: 1 addition & 1 deletion SRC/sgeev.f
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Expand Up @@ -519,7 +519,7 @@ SUBROUTINE SGEEV( JOBVL, JOBVR, N, A, LDA, WR, WI, VL, LDVL,
* Undo scaling if necessary
*
50 CONTINUE
IF( SCALEA ) THEN
IF( SCALEA .AND. INFO.GE.0 ) THEN
CALL SLASCL( 'G', 0, 0, CSCALE, ANRM, N-INFO, 1,
$ WR( INFO+1 ),
$ MAX( N-INFO, 1 ), IERR )
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2 changes: 1 addition & 1 deletion SRC/zgeev.f
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Expand Up @@ -493,7 +493,7 @@ SUBROUTINE ZGEEV( JOBVL, JOBVR, N, A, LDA, W, VL, LDVL, VR,
* Undo scaling if necessary
*
50 CONTINUE
IF( SCALEA ) THEN
IF( SCALEA .AND.INFO.GE.0) THEN
CALL ZLASCL( 'G', 0, 0, CSCALE, ANRM, N-INFO, 1,
$ W( INFO+1 ),
$ MAX( N-INFO, 1 ), IERR )
Expand Down