libmempool

libmempool Nota preliminar: recomendamos usar esto como parte de asatools pero también se puede usar de forma independiente. libmempool es un script de Python y una herramienta de análisis para GDB que ayuda en el análisis de las estructuras de datos relacionadas con mempool que se encuentran...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053436)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053436 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2negotiate In some cases of failure dialect mismatches in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: NFS: Avoid writeback threads getting stuck in mempoolalloc In situations with low memory availability, allow the NFS writeback code to fail without getting stuck in infinite loops in mempoolalloc...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: dm: fixed a NULL pointer race issue when completing IO operations. The dmiodecpending function calls endioacct first, and then decreases the number of pending DMA operations. However, if a task swaps the DM table at the same...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cifs: fixed a small mempool leak in SMB2negotiate. In some cases of failures dialect mismatches in SMB2negotiate, after the request is sent, the checks would return -EIO. Instead, it should return rc = -EIO and then jump to negex...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nvme-pci: fixed the mempool allocation size. The maximum size was converted to bytes to match the units of the divisor that calculates the worst-case number of PRP entries. This result is used to determine how many PRP lists a...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: md: fixed a crash in mempoolfree There is a crash in mempoolfree when running the lvm test using shell/lvchange-rebuild-raid.sh. The reason for the crash is as follows: - superwritten calls atomicdecandtest&mddev-pendingwrites an...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/mempool: Fixed the issue where poisoning operations affected pages with an order greater than 0 using HIGHMEM. The kernel test reported the following issues: - BUG: Unable to handle page faults for address: fffba000. - PF:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: Fix for a random warning message when loading drivers Warning log: 4.141392 Unexpected gfp: 0x4 GFPDMA32. Fixing it up to gfp: 0xa20 GFPATOMIC. Fix your code! 4.150340 CPU: 1 PID: 175 Comm: 1-0050 Not tainted...

CVE-2026-52829

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated IPv4 peer can deterministically terminate a synced Zebra node using the default Linux dual-stack listener configuration. The handshake path canonicalized an IPv4-mapped IPv6 PeerSocketAddr such as ::ffff:127.0.0.1 ...

CVE-2026-52734

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated P2P peer can cause the mempool download pipeline to retain transactions after verification reaches the outer RATELIMITDELAY timeout. In zebrad/src/components/mempool/downloads.rs, Downloads::pollnext removed...

CVE-2026-52732

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, one unauthenticated P2P peer can monopolize all 25 MAXINBOUNDCONCURRENCY slots in Zebra's inbound mempool download and verification pipeline. In zebrad/src/components/mempool/downloads.rs, the bounded queue was shared globally withou...

CVE-2026-52829 ZEBRA: IPv4-Mapped Mempool Misbehavior Update Aborts Zebra Address Book

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated IPv4 peer can deterministically terminate a synced Zebra node using the default Linux dual-stack listener configuration. The handshake path canonicalized an IPv4-mapped IPv6 PeerSocketAddr such as ::ffff:127.0.0.1 ...

CVE-2026-52829 ZEBRA: IPv4-Mapped Mempool Misbehavior Update Aborts Zebra Address Book

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated IPv4 peer can deterministically terminate a synced Zebra node using the default Linux dual-stack listener configuration. The handshake path canonicalized an IPv4-mapped IPv6 PeerSocketAddr such as ::ffff:127.0.0.1 ...

CVE-2026-52829

An unauthenticated remote peer can deterministically crash any synced zebrad node (v4.4.1 and earlier) on the default Linux dual-stack listener by completing a P2P handshake and advertising an invalid mempool transaction; the crash fires after the 30-second misbehavior batch flush due to an IPv4-...

CVE-2026-52732 ZEBRA: Mempool transaction admission denial via single-peer inbound queue saturation

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, one unauthenticated P2P peer can monopolize all 25 MAXINBOUNDCONCURRENCY slots in Zebra's inbound mempool download and verification pipeline. In zebrad/src/components/mempool/downloads.rs, the bounded queue was shared globally withou...

CVE-2026-52732

ZEBRA (zebrad), a Zcash node written in Rust, is vulnerable to mempool transaction admission denial via single-peer inbound queue saturation in versions prior to 4.5.0 . A single unauthenticated P2P peer can monopolize all 25 MAX_INBOUND_CONCURRENCY slots in the inbound mempool download/verificat...

CVE-2026-52734

In Downloads::poll_next() (downloads.rs:215-228), the timeout error path (Err(elapsed)) skips cancel_handles.remove() because tokio::time::error::Elapsed carries no transaction ID, so each timed-out entry retains up to ~9 MB of transaction data. With no GC or cap, an unauthenticated peer causes m...

SUSE CVE-2026-74542

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix folioqueue ENOMEM in writeback by adding a mempool Fix the handling of folioqueue allocation failure in writeback by adding a mempool and passing in gfpt flags to the rolling buffer functions that allocate memory, usin...

CVE-2026-74542

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix folioqueue ENOMEM in writeback by adding a mempool Fix the handling of folioqueue allocation failure in writeback by adding a mempool and passing in gfpt flags to the rolling buffer functions that allocate memory, usin...