pkg/report: skip crypto frames for KMSAN reports

pkg/report/linux.go

@@ -1511,7 +1511,11 @@ var linuxOopses = append([]*oops{
 						compile("(Local variable .* created at:|Uninit was created at:)"),
 						parseStackTrace,
 					},
-					skip: []string{"alloc_skb", "netlink_ack", "netlink_rcv_skb"},
+					skip: []string{
+						"alloc_skb", "netlink_ack", "netlink_rcv_skb",
+						// Encryption routines are the place where we hit the bug, but
+						// the generic code is a bad candidate for bug titles.
+						"_encrypt$", "^(?:crypto|cipher|drbg|rng)_"},
 				},
 				noStackTrace: true,
 			},

pkg/report/testdata/linux/report/699

@@ -1,5 +1,5 @@
-TITLE: KMSAN: uninit-value in aes_encrypt
-ALT: bad-access in aes_encrypt
+TITLE: KMSAN: uninit-value in fscrypt_crypt_block
+ALT: bad-access in fscrypt_crypt_block
 TYPE: KMSAN-UNINIT-VALUE
 
 [  311.903743][ T5388] =====================================================

pkg/report/testdata/linux/report/751

@@ -0,0 +1,180 @@
+TITLE: KMSAN: uninit-value in alg_setkey
+ALT: bad-access in alg_setkey
+TYPE: KMSAN-UNINIT-VALUE
+EXECUTOR: proc=2, id=690
+
+
+=====================================================
+BUG: KMSAN: uninit-value in aes_encrypt+0x1239/0x1960
+ aes_encrypt+0x1239/0x1960
+ aesti_encrypt+0x7d/0xf0
+ cipher_crypt_one+0x120/0x2e0
+ crypto_cipher_encrypt_one+0x33/0x40
+ drbg_ctr_update+0x19a9/0x3700
+ drbg_seed+0xb1e/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+<Zero or more stacks not recorded to save memory>
+
+Uninit was stored to memory at:
+ crypto_sha3_finup+0x136/0xe00
+ crypto_shash_finup+0x327/0xe80
+ jent_hash_time+0x247/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Uninit was stored to memory at:
+ crypto_shash_finup+0xc5a/0xe80
+ jent_hash_time+0x1de/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Uninit was stored to memory at:
+ crypto_sha3_finup+0xc98/0xe00
+ crypto_shash_finup+0x327/0xe80
+ jent_hash_time+0x247/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Uninit was stored to memory at:
+ keccakf+0x1efb/0x2110
+ crypto_sha3_finup+0x772/0xe00
+ crypto_shash_finup+0x327/0xe80
+ jent_hash_time+0x247/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Uninit was stored to memory at:
+ crypto_sha3_finup+0x5be/0xe00
+ crypto_shash_finup+0x327/0xe80
+ jent_hash_time+0x247/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Uninit was stored to memory at:
+ crypto_sha3_finup+0x136/0xe00
+ crypto_shash_finup+0x327/0xe80
+ jent_hash_time+0x247/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Uninit was stored to memory at:
+ crypto_shash_finup+0xc5a/0xe80
+ jent_hash_time+0x1de/0x590
+ jent_condition_data+0x4f0/0x510
+ jent_measure_jitter+0x547/0x770
+ jent_gen_entropy+0x209/0x450
+ jent_read_entropy+0x353/0xeb0
+ jent_kcapi_random+0x6c/0x250
+ drbg_seed+0x3f5/0xe20
+ drbg_kcapi_seed+0x19b2/0x1e40
+ crypto_rng_reset+0x193/0x250
+ rng_setkey+0x52/0x70
+ alg_setkey+0x265/0x3b0
+ alg_setsockopt+0x503/0x760
+ __sys_setsockopt+0x43e/0x580
+ __x64_sys_setsockopt+0xf4/0x1a0
+ x64_sys_call+0x27c9/0x3e30
+ do_syscall_64+0xd9/0x210
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+
+Local variable intermediary created at:
+ jent_hash_time+0x9b/0x590
+ jent_condition_data+0x4f0/0x510
+
+CPU: 0 UID: 0 PID: 8436 Comm: syz.2.690 Not tainted syzkaller #0 PREEMPT(none) 
+Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
+=====================================================