bpf: Fix regsafe() for pointers to packet
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix regsafe() for pointers to packet
In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N
regsafe() may return true which may lead to current state with
valid packet range not being explored. Fix the bug.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://git.kernel.org/stable/c/015a74476dc1ab6923d89f1ee009aaf43faa7185https://git.kernel.org/stable/c/37db6b9726d0bcf91cbdf9d63b558c50da49f968https://git.kernel.org/stable/c/7241da033fdc507b920e092dab1f97b945cb0370https://git.kernel.org/stable/c/8aebe18069394f4a79d2d82080a0f806da449996https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225https://git.kernel.org/stable/c/b52f6d0ef7b308f9d05bbddb78749852f28e8e40https://git.kernel.org/stable/c/b99d82706bd1511bb875e3de7154698fd9215c99https://git.kernel.org/stable/c/ca995b1462ec6db1e869100ba1fb7356bd3f22f0