Advisory [CVE-2024-56581 +7] Kernel Live Patch Security Notice
This Red Hat Linux security advisory covers CVE-2024-56581 and CVE-2024-56593 and 6 more CVEs; related products: Ubuntu 25.10, Ubuntu 24.04, Ubuntu 22.04.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 8 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.
VulniPulse record published
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: ref-verify: fix use-after-free after invalid ref action At btrfs_ref_tree_mod() after we successfully inserted the new ref entry (local variable 'ref') into the respective block entry's rbtree (local variable 'be'), if we find an unexpected action of BTRFS_DROP_DELAYED_REF, we error out and free the ref entry without removing it from the block entry's rbtree.
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() This patch fixes a NULL pointer dereference bug in brcmfmac that occurs when a high 'sd_sgentry_align' value applies (e.g. 512) and a lot of queued SKBs are sent from the pkt queue.
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix LGR and link use-after-free issue We encountered a LGR/link use-after-free issue, which manifested as the LGR/link refcnt reaching 0 early and entering the clear process, making resource access unsafe.
In the Linux kernel, the following vulnerability has been resolved: usb: cdc-acm: Check control transfer buffer size before access If the first fragment is shorter than struct usb_cdc_notification, we can't calculate an expected_size.
- Ubuntu 25.10
- Ubuntu 24.04
- Ubuntu 22.04
- Ubuntu 20.04
- Ubuntu 18.04
- Ubuntu 16.04
Official advisory · medium-confidence parse· fetched 4 months ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 4 months ago·verify at source
Mitigation checklist
- Apply available updates: `sudo apt update && sudo apt upgrade` (a standard system update installs the fix).
Official advisory · medium-confidence parse· fetched 4 months ago·verify at source
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