CVE-2026-72298

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux960b08dd36de1e341e3eb43d1c547513e338f4f8 < 3665e644ea081c4624a1637023b0de3b29f4ae04affected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < b609f7f46916c6b05585ca82455077198a23770faffected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 242408b5b763c01288adf3113cbce84378a76e1aaffected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < d0597074e99731fdad5593e4f6d056a3866f2cabaffected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 689b7267f8632b4661879dc323e26ebb60978afbaffected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 22100a8f73d4ae4f17697dae93d4e2e1d283a6ecaffected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 7f72c285f6d3bf63968a0344beee8ab1b370198baffected
LinuxLinuxad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 20054869770c7df060c5ecee3e8bbf9029c47191affected
LinuxLinuxf8111c0d7ed42ede41a3d0d393b104de0730a8a6affected
LinuxLinux26b8d10703a9be45d6097946b2b4011f7dd2c56faffected
LinuxLinux19892ab9c9d838e2e5a7744d36e4bb8b7c3292feaffected
LinuxLinux5.10.46 < 5.10.261affected
LinuxLinux4.19.196 < 4.20affected
LinuxLinux5.4.128 < 5.5affected
LinuxLinux5.12.13 < 5.13affected
LinuxLinux5.13affected
LinuxLinux0 < 5.13unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References