CVE-2026-80788
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)
nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations When fuzzing the nvme target code, I tripped a kernel warning in nvmet_tcp_map_data() because the length passed into the allocator is controlled by the remote initiator. A remote initiator that sends a command with an SGL claiming a huge number, can create a scatterlist and iovec allocation of over 1 million entries, which causes the backing kmalloc call to exceed MAX_PAGE_ORDER and then the page allocator will trip on a WARN_ON_ONCE_GFP() message: WARNING: mm/page_alloc.c:5280 __alloc_frozen_pages_noprof Workqueue: nvmet_tcp_wq nvmet_tcp_io_work ... sgl_alloc_order nvmet_tcp_map_data nvmet_tcp_try_recv_pdu As it's never good to trip a kernel warning remotely due to many systems having panic-on-warn enabled, let's silence it by just add GFP_NOWARN to the allocation flags.
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) |
|---|---|---|---|---|---|
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 8d01f0d0e96485e39ad89b859ef85e1dc3020465 | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 7b6a54d4e7b0da423c2b53ed293fd36b16c0b19e | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | e7077e6c45423dd2bb7de7b5fc4b018a8e6c4741 | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 86cc450022473c4a29b43a09f3ec22a9ef566dac | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | c509f20be1cabda3087810bb2d658d66b3f31f35 | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 9c95f7e66c62ee6c6abedcf1c04311f430ff5833 | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 7fd6da0f28932442b51658bac4ff55565ca9b377 | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 9b770e40bc00381e5ebf53653de5776773415be3 | Unavailable | None listed |
| 872d26a391da92ed8f0c0f5cb5fef428067b7f30 | affected | git | 737a3b535247226f6e1a7988fd9d6e63e7d6fc71 | 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) |
|---|---|---|---|---|---|
| 5.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.0 | Unavailable | None listed |
| 5.10.267 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.218 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.185 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.154 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.106 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.47 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.11 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2.1 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |