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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. Change subject: fix logging: log_set_category_filter() for internal DL* logging cats ...................................................................... fix logging: log_set_category_filter() for internal DL* logging cats In log_set_category_filter(), passing a negative index lead to memory corruption. Particularly dangerous since the internal logging categories have negative values. Fix: apply map_subsys() to interpret negative values as internal logging categories. As a side effect, out-of-bounds logging categories will be mapped to DLGLOBAL instead of being dropped. Fix the expectations in logging_test to match the fixed bug. While at it also guard against a NULL logging target. Change-Id: Ib0725b22bc39498c6b3970a61eb3339cf56d19f1 --- M src/logging.c M tests/logging/logging_test.err 2 files changed, 3 insertions(+), 1 deletion(-) Approvals: Harald Welte: Looks good to me, approved Jenkins Builder: Verified diff --git a/src/logging.c b/src/logging.c index d32ca43..b0bca54 100644 --- a/src/logging.c +++ b/src/logging.c @@ -577,8 +577,9 @@ void log_set_category_filter(struct log_target *target, int category, int enable, int level) { - if (category >= osmo_log_info->num_cat) + if (!target) return; + category = map_subsys(category); target->categories[category].enabled = !!enable; target->categories[category].loglevel = level; } diff --git a/tests/logging/logging_test.err b/tests/logging/logging_test.err index 4527d83..17b3cad 100644 --- a/tests/logging/logging_test.err +++ b/tests/logging/logging_test.err @@ -6,3 +6,4 @@ DLGLOBAL You should see this on DLGLOBAL (c) DLGLOBAL You should see this on DLGLOBAL (d) DLGLOBAL You should see this on DLGLOBAL (e) +DLGLOBAL You should see this (DLGLOBAL on DEBUG) -- To view, visit https://gerrit.osmocom.org/1421 To unsubscribe, visit https://gerrit.osmocom.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: Ib0725b22bc39498c6b3970a61eb3339cf56d19f1 Gerrit-PatchSet: 4 Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder