CVE-2026-23056
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)
uacce: implement mremap in uacce_vm_ops to return -EPERM
In the Linux kernel, the following vulnerability has been resolved: uacce: implement mremap in uacce_vm_ops to return -EPERM The current uacce_vm_ops does not support the mremap operation of vm_operations_struct. Implement .mremap to return -EPERM to remind users. The reason we need to explicitly disable mremap is that when the driver does not implement .mremap, it uses the default mremap method. This could lead to a risk scenario: An application might first mmap address p1, then mremap to p2, followed by munmap(p1), and finally munmap(p2). Since the default mremap copies the original vma's vm_private_data (i.e., q) to the new vma, both munmap operations would trigger vma_close, causing q->qfr to be freed twice(qfr will be set to null here, so repeated release is ok).
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) |
|---|---|---|---|---|---|
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | 78d99f062d42e3af2ca46bde1a8e46e0dfd372e3 | Unavailable | None listed |
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | ebfa85658a39b49ec3901ceea7535b73aa0429e6 | Unavailable | None listed |
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | 75b29bdc935ff93b8e8bf6f6b4d8a4810b26e06f | Unavailable | None listed |
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | 4c042bc71474dbe417c268f4bfb8ec196f802f07 | Unavailable | None listed |
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | a407ddd61b3e6afc5ccfcd1478797171cf5686ee | Unavailable | None listed |
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | ba29b59d124e725e0377f09b2044909c91d657a1 | Unavailable | None listed |
| 015d239ac0142ad0e26567fd890ef8d171f13709 | affected | git | 02695347be532b628f22488300d40c4eba48b9b7 | 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) |
|---|---|---|---|---|---|
| 5.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.7 | Unavailable | None listed |
| 5.10.249 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.199 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.162 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.122 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.68 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.8 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |