CVE-2025-40187
High
Description
In the Linux kernel, the following vulnerability has been resolved: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() If new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0 and sctp_ulpevent_make_authkey() returns 0, then the variable ai_ev remains zero and the zero will be dereferenced in the sctp_ulpevent_free() function.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Linux
PublishedNov 12, 2025
First seenNov 12, 2025
How to fix
Update
- Linux Linux1014b83778c8677f1d7a57c26dc728baa801ac62, 7f702f85df0266ed7b5bab81ba50394c92f3c928, dbceedc0213e75bf3e9f9f9e2f66b10699d004fe, 025419f4e216a3ae0d0cec622262e98e8078c447, c21f45cfa4a9526b34d76b397c9ef080668b6e73, d0e8f1445c19b1786759ba72a38267e1449bab7e, badbd79313e6591616c1b78e29a9b71efed7f035, 2f3119686ef50319490ccaec81a575973da98815 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < 1014b83778c8677f1d7a57c26dc728baa801ac62, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < 7f702f85df0266ed7b5bab81ba50394c92f3c928, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < dbceedc0213e75bf3e9f9f9e2f66b10699d004fe, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < 025419f4e216a3ae0d0cec622262e98e8078c447, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < c21f45cfa4a9526b34d76b397c9ef080668b6e73, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < d0e8f1445c19b1786759ba72a38267e1449bab7e, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < badbd79313e6591616c1b78e29a9b71efed7f035, 30f6ebf65bc46161c5aaff1db2e6e7c76aa4a06b ≤ v < 2f3119686ef50319490ccaec81a575973da98815, 4.17 | 1014b83778c8677f1d7a57c26dc728baa801ac62, 7f702f85df0266ed7b5bab81ba50394c92f3c928, dbceedc0213e75bf3e9f9f9e2f66b10699d004fe, 025419f4e216a3ae0d0cec622262e98e8078c447, c21f45cfa4a9526b34d76b397c9ef080668b6e73, d0e8f1445c19b1786759ba72a38267e1449bab7e, badbd79313e6591616c1b78e29a9b71efed7f035, 2f3119686ef50319490ccaec81a575973da98815 |
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