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authorJakub Kicinski <kuba@kernel.org>2024-04-25 12:40:48 -0700
committerJakub Kicinski <kuba@kernel.org>2024-04-25 12:41:37 -0700
commit2bd87951de659df3381ce083342aaf5b1ea24689 (patch)
treee2635c49fddc29a53b8f537212dc6eb5b2013851 /lib/ubsan.c
parentec00ed472bdb7d0af840da68c8c11bff9f4d9caa (diff)
parent52afb15e9d9a021ab6eec923a087ec9f518cb713 (diff)
downloadlwn-2bd87951de659df3381ce083342aaf5b1ea24689.tar.gz
lwn-2bd87951de659df3381ce083342aaf5b1ea24689.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/ti/icssg/icssg_prueth.c net/mac80211/chan.c 89884459a0b9 ("wifi: mac80211: fix idle calculation with multi-link") 87f5500285fb ("wifi: mac80211: simplify ieee80211_assign_link_chanctx()") https://lore.kernel.org/all/20240422105623.7b1fbda2@canb.auug.org.au/ net/unix/garbage.c 1971d13ffa84 ("af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc().") 4090fa373f0e ("af_unix: Replace garbage collection algorithm.") drivers/net/ethernet/ti/icssg/icssg_prueth.c drivers/net/ethernet/ti/icssg/icssg_common.c 4dcd0e83ea1d ("net: ti: icssg-prueth: Fix signedness bug in prueth_init_rx_chns()") e2dc7bfd677f ("net: ti: icssg-prueth: Move common functions into a separate file") No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'lib/ubsan.c')
-rw-r--r--lib/ubsan.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/ubsan.c b/lib/ubsan.c
index 5fc107f61934..a1c983d148f1 100644
--- a/lib/ubsan.c
+++ b/lib/ubsan.c
@@ -44,9 +44,10 @@ const char *report_ubsan_failure(struct pt_regs *regs, u32 check_type)
case ubsan_shift_out_of_bounds:
return "UBSAN: shift out of bounds";
#endif
-#ifdef CONFIG_UBSAN_DIV_ZERO
+#if defined(CONFIG_UBSAN_DIV_ZERO) || defined(CONFIG_UBSAN_SIGNED_WRAP)
/*
- * SanitizerKind::IntegerDivideByZero emits
+ * SanitizerKind::IntegerDivideByZero and
+ * SanitizerKind::SignedIntegerOverflow emit
* SanitizerHandler::DivremOverflow.
*/
case ubsan_divrem_overflow:
@@ -78,6 +79,19 @@ const char *report_ubsan_failure(struct pt_regs *regs, u32 check_type)
case ubsan_type_mismatch:
return "UBSAN: type mismatch";
#endif
+#ifdef CONFIG_UBSAN_SIGNED_WRAP
+ /*
+ * SanitizerKind::SignedIntegerOverflow emits
+ * SanitizerHandler::AddOverflow, SanitizerHandler::SubOverflow,
+ * or SanitizerHandler::MulOverflow.
+ */
+ case ubsan_add_overflow:
+ return "UBSAN: integer addition overflow";
+ case ubsan_sub_overflow:
+ return "UBSAN: integer subtraction overflow";
+ case ubsan_mul_overflow:
+ return "UBSAN: integer multiplication overflow";
+#endif
default:
return "UBSAN: unrecognized failure code";
}