CVE-2026-93286net: appletalk: fix NULL pointer dereference in aarp_send_ddp()
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: net: appletalk: fix NULL pointer dereference in aarp_send_ddp() aarp_send_ddp() calls atalk_find_dev_addr(dev) in the LocalTalk fast path without checking for NULL. When the device has no AppleTalk interface configured (dev->atalk_ptr == NULL), this leads to a NULL pointer dereference at the at->s_net access. KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:aarp_send_ddp (net/appletalk/aarp.c:552 (discriminator 2)) Call Trace: <TASK> atalk_sendmsg (net/appletalk/ddp.c:1715) __sys_sendto (net/socket.c:2265 (discriminator 1)) __x64_sys_sendto (net/socket.c:2272) do_syscall_64 (arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) Add a NULL check consistent with the other callers of atalk_find_dev_addr().
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 9 days later
· 9 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 51cc5e756cec6071ffc620076aebcf5bae936668
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 8c4b9ceb1be780588c1c50d573d5ee308e0874d2
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d643fd42ad96f19b5ce5cb11824fefa617191dbe
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 542c1dd41e1b0cd1c2c3ba8091c7d882eea0d680
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 8fc30f0cdf4207a5aa2341c0a98d0f1713b3ce2c
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 83899a056aeb120898a6e3a989971fc63e274e2e
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9e7f36ab5b7bf68463faa5f7b926fea8f35597bb
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.271 – ≤ 5.10.*
- unaffected 5.15.222 – ≤ 5.15.*
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.1 – ≤ *
References
References7
- https://git.kernel.org/stable/c/51cc5e756cec6071ffc620076aebcf5bae936668 (opens in a new tab)
- https://git.kernel.org/stable/c/8c4b9ceb1be780588c1c50d573d5ee308e0874d2 (opens in a new tab)
- https://git.kernel.org/stable/c/d643fd42ad96f19b5ce5cb11824fefa617191dbe (opens in a new tab)
- https://git.kernel.org/stable/c/542c1dd41e1b0cd1c2c3ba8091c7d882eea0d680 (opens in a new tab)
- https://git.kernel.org/stable/c/8fc30f0cdf4207a5aa2341c0a98d0f1713b3ce2c (opens in a new tab)
- https://git.kernel.org/stable/c/83899a056aeb120898a6e3a989971fc63e274e2e (opens in a new tab)
- https://git.kernel.org/stable/c/9e7f36ab5b7bf68463faa5f7b926fea8f35597bb (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86165 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-93286)Record last updated .