CVE-2026-98698
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
wifi: mac80211: handle empty FILS association request payload
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: handle empty FILS association request payload fils_encrypt_assoc_req() accepts a (Re)Association Request frame whose last element is the FILS Session element. crypt_len is then zero and aes_siv_encrypt() is called with an empty plaintext. kmemdup() returns ZERO_SIZE_PTR for a zero-length allocation, so the unconditional sg_init_one() puts an invalid page into the scatterlist. With CONFIG_DEBUG_SG this triggers a kernel BUG in sg_set_buf(); without the debug check the bogus page is handed to the crypto backend. AES-SIV is defined for empty plaintext and the S2V result is then the complete output, so handle this case before the CTR step, which has nothing to encrypt.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 39404feee691a2dc524a629ed6eb5cfe5d8898d1 | affected | git | 0b1e4a7eeb6a301ee33bd318982927cbdbae9f36 | Unavailable | None listed |
| 39404feee691a2dc524a629ed6eb5cfe5d8898d1 | affected | git | 2f5b62f6534d336a62fdb9e88b186dd70b4323ef | Unavailable | None listed |
| 39404feee691a2dc524a629ed6eb5cfe5d8898d1 | affected | git | 452f1c9b76f7a122bbc4630b9691bda4809677c4 | Unavailable | None listed |
| 39404feee691a2dc524a629ed6eb5cfe5d8898d1 | affected | git | 20f939b0c151d1d28e6b62a76b2454fa6fe877f2 | Unavailable | None listed |
| 39404feee691a2dc524a629ed6eb5cfe5d8898d1 | affected | git | 5bfd4b0b40b79781d900cb2f7da0685070f53c67 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.10 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.113 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.56 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.10 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |