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CVE-2026-72298

net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 4.20, 5.5, 5.13, 5.15.212, and 5 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() qrtr_endpoint_post() validates an incoming packet with if (!size || len != ALIGN(size, 4) + hdrlen) goto err; where size comes from the wire. On 32-bit, size_t is 32 bits and ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check passes and skb_put_data(skb, data + hdrlen, size) writes past the hdrlen-sized skb and oopses the kernel. 64-bit is unaffected. This is the 32-bit residual of ad9d24c9429e2 ("net: qrtr: fix OOB Read in qrtr_endpoint_post"), which fixed only the 64-bit case. Reject any size that cannot fit the buffer before the ALIGN.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 960b08dd36de1e341e3eb43d1c547513e338f4f8 · fixed in 3665e644ea081c4624a1637023b0de3b29f4ae04; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in b609f7f46916c6b05585ca82455077198a23770f; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in 242408b5b763c01288adf3113cbce84378a76e1a; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in d0597074e99731fdad5593e4f6d056a3866f2cab; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in 689b7267f8632b4661879dc323e26ebb60978afb; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in 22100a8f73d4ae4f17697dae93d4e2e1d283a6ec; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in 7f72c285f6d3bf63968a0344beee8ab1b370198b; From ad9d24c9429e2159d1e279dc3a83191ccb4daf1d · fixed in 20054869770c7df060c5ecee3e8bbf9029c47191; From 5.10.46 · fixed in 5.10.261; From 4.19.196 · fixed in 4.20; From 5.4.128 · fixed in 5.5; From 5.12.13 · fixed in 5.13

  • Linux Linux

    5.13

  • KernelLinux

    fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.13.0 · fixed in 6.1.178; From 5.16.0 · fixed in 6.6.145; From 6.2.0 · fixed in 6.12.97; From 6.7.0 · fixed in 6.18.40; From 6.13.0 · fixed in 7.1.5

References 8

git.kernel.org