CVE-2026-98742
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)
ALSA: seq: Serialize compat port-info ioctls
In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Serialize compat port-info ioctls The native sequencer ioctl path serializes handler calls with client->ioctl_mutex, but the translated port-info compat path invokes the same handlers through snd_seq_kernel_client_ctl() without taking that mutex. This lets concurrent compat CREATE_PORT requests pass the port-count check before any request reaches the serialized insertion. The computed integer port index can then exceed the address field range and wrap to an existing index. Subsequent subscriber teardown can resolve the duplicate address to the wrong port and access a freed subscriber. Take ioctl_mutex while dispatching converted port-info requests, matching the native ioctl path. All translated port-info commands share this helper, so their accesses to the client port state are serialized as well.
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) |
|---|---|---|---|---|---|
| b3defb791b26ea0683a93a4f49c77ec45ec96f10 | affected | git | 2db234e163f0d211b69a4eebbec8aacc5a54a80e | Unavailable | None listed |
| b3defb791b26ea0683a93a4f49c77ec45ec96f10 | affected | git | 413211dd31cb2ef2fc99fb0aa1a037a97509502c | Unavailable | None listed |
| b3defb791b26ea0683a93a4f49c77ec45ec96f10 | affected | git | fc5c52848e405b6efb073db5035bb9ebaed11ec4 | Unavailable | None listed |
| b3defb791b26ea0683a93a4f49c77ec45ec96f10 | affected | git | 702d92f361f65d9698c473c7599d471395dc4341 | Unavailable | None listed |
| b3defb791b26ea0683a93a4f49c77ec45ec96f10 | affected | git | 95b2e0361c88753afa030c10698be0a1a5b67650 | Unavailable | None listed |
| d6693160906d55ba376bf0b88b7c129762170162 | affected | git | Unavailable | Unavailable | None listed |
| 02cbce8576a31df8fca54aaec91ee081076bd79d | affected | git | Unavailable | Unavailable | None listed |
| 6aab3aa52366a0051e5abf8aae4616c42053fd8e | affected | git | Unavailable | Unavailable | None listed |
| f8a38ab4cd9624fc5ac8a7f965c7b20f5b62c03c | affected | git | Unavailable | Unavailable | None listed |
| 623e5c8ae32b39cc8baea83478695dc624935318 | affected | git | Unavailable | Unavailable | None listed |
| e4ff9f294629b65df3f7982cd4faf86b2856b9d7 | affected | git | Unavailable | Unavailable | None listed |
| c3162384aed4cfe3f1a1f40041f3ba8cd7704d88 | affected | git | Unavailable | Unavailable | None listed |
| 3.2.99 | affected | semver | 3.3 | Unavailable | None listed |
| 3.16.54 | affected | semver | 3.17 | Unavailable | None listed |
| 3.18.94 | affected | semver | 3.19 | Unavailable | None listed |
| 4.1.50 | affected | semver | 4.2 | Unavailable | None listed |
| 4.4.115 | affected | semver | 4.5 | Unavailable | None listed |
| 4.9.78 | affected | semver | 4.10 | Unavailable | None listed |
| 4.14.15 | affected | semver | 4.15 | 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) |
|---|---|---|---|---|---|
| 4.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.15 | 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 |