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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Aug 2025 11:59:58.4728 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 11ff348b-e561-4830-d79c-08ddd0f2f020 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DB1PEPF000509EB.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB8066 X-Rspamd-Queue-Id: EEA3F40017 X-Stat-Signature: 7pugyqahx4tapf3st1h8ew177ypqtbxm X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1754049605-354661 X-HE-Meta: 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 j9rCm3Bt 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Andrey, > > > > When CONFIG_FORTIFY_SOURCE is enabled, invalid access from source > > triggers __fortify_panic() which kills running task. > > > > This makes failured of kasan_strings() kunit testcase since the > > kunit-try-cacth kthread running kasan_string() dies before checking the > > fault. > > > > To address this, add define for __NO_FORTIFY for kasan kunit test. > > > > Signed-off-by: Yeoreum Yun > > --- > > mm/kasan/Makefile | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile > > index dd93ae8a6beb..b70d76c167ca 100644 > > --- a/mm/kasan/Makefile > > +++ b/mm/kasan/Makefile > > @@ -44,6 +44,10 @@ ifndef CONFIG_CC_HAS_KASAN_MEMINTRINSIC_PREFIX > > CFLAGS_KASAN_TEST += -fno-builtin > > endif > > > > +ifdef CONFIG_FORTIFY_SOURCE > > +CFLAGS_KASAN_TEST += -D__NO_FORTIFY > > +endif > > We should be able to use OPTIMIZER_HIDE_VAR() to deal with this > instead; see commits b2325bf860fa and 09c6304e38e4. Thanks for sharing this! I'll update the patch! -- Sincerely, Yeoreum Yun