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ipsec esp: avoid dereferencing freed secasindex

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(cherry picked from commit 1a56620b7958cac2b9048589cb730c46958ab539)
This commit is contained in:
Konstantin Belousov 2024-02-25 12:30:48 +02:00
parent 38a5635de9
commit 7f387adb69
1 changed files with 7 additions and 0 deletions
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7
sys/netipsec/xform_esp.c
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@ -508,6 +508,13 @@ esp_input_cb(struct cryptop *crp)
xd = crp->crp_opaque;
CURVNET_SET(xd->vnet);
sav = xd->sav;
if (sav->state >= SADB_SASTATE_DEAD) {
/* saidx is freed */
DPRINTF(("%s: dead SA %p spi %#x\n", __func__, sav, sav->spi));
ESPSTAT_INC(esps_notdb);
error = ESRCH;
goto bad;
}
skip = xd->skip;
protoff = xd->protoff;
cryptoid = xd->cryptoid;