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top: fix potential SEGV when no tasks were displayable

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This patch fixes a nearly decade old bug discovered by
Frederik Deweerdt. His merge request shown below would
be an adequate solution except for iterative overhead.

This alternate patch will represent substantially less
overhead for an admittedly extremely rare possibility.

Reference(s):
https://gitlab.com/procps-ng/procps/-/merge_requests/114

And-thanks-to: Frederik Deweerdt <fdeweerdt@fastly.com>
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner
2020-09-09 00:00:00 -05:00
committed by Craig Small
parent 7a19961fc2
commit f57a0301e3
2 changed files with 3 additions and 0 deletions
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@ -13,6 +13,7 @@ procps-ng NEXT
* top: add command line 'e' for symmetry with 'E' issue #165
* top: add '4' toggle for two abreast cpu display issue #172
* top: add '!' toggle for combining multiple cpus
* top: fix potential SEGV involving -p switch merge #114
* vmstat: Wide mode gives wider proc columns merge #48
* watch: Add environment variable for interval merge #62