Description: xen/netback: Ensure protocol headers don't fall in the non-linear area
References:
 https://www.openwall.com/lists/oss-security/2022/12/06/1
 https://xenbits.xen.org/xsa/advisory-423.html
Notes:
Bugs:
 https://bugs.debian.org/1026035
upstream: released (6.1) [ad7f402ae4f466647c3a669b8a6f3e5d4271c84a, 7dfa764e0223a324366a2a1fc056d4d9d4e95491]
5.10-upstream-stable: released (5.10.159) [49e07c0768dbebff672ee1834eff9680fc6277bf, a00444e25bbc3ff90314ebc72e9b4952b12211d9]
4.19-upstream-stable: released (4.19.269) [44dfdecc288b8d5932e09f5e6a597a089d5a82b2, 5215a8c7a72c0c9d49de9450ad92464832e981af]
sid: released (6.0.12-1) [bugfix/all/xen-netback-Ensure-protocol-headers-don-t-fall-in-th.patch], released (6.1.4-1)
5.10-bullseye-security: released (5.10.158-1) [bugfix/all/xen-netback-Ensure-protocol-headers-don-t-fall-in-th.patch], released (5.10.158-2) [bugfix/all/xen-netback-fix-build-warning.patch]
4.19-buster-security: released (4.19.269-1)