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CVE-2024-36016 is an out-of-bounds write vulnerability in the Linux kernel TTY n_gsm line discipline's gsm0_receive() receive path. A peer can send a basic-mode GSM frame header declaring a payload length of one byte, after which the local endpoint switches to advanced mode. Because gsm->len is not used in advanced mode, subsequent payload bytes can exceed the previously established length. If the endpoint then switches back to basic mode, stale gsm->state and gsm->len values allow continued input to be written past gsm->buf. The upstream fix changes the receive-length comparison from equality to a less-than bound and adds MAX_MRU upper-bound validation in gsm0_receive() and gsm1_receive() to limit damage from corrupted length or MRU state.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Potential out-of-bounds vulnerability in the Linux kernel TTY n_gsm gsm0_receive() function.
Possible out-of-bounds access in the Linux n_gsm TTY line discipline receive handler.
Linux kernel n_gsm out-of-bounds vulnerability in gsm0_receive().
Linux kernel TTY GSM line-discipline out-of-bounds flaw fixed in the updated image.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.