Integer Overflow or Wraparound Affecting kernel-doc package, versions <0:4.18.0-553.16.1.el8_10

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: don't return unset power in ieee80211_get_tx_power()

We can get a UBSAN warning if ieee80211_get_tx_power() returns the INT_MIN value mac80211 internally uses for "unset power level".

UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5 -2147483648 * 100 cannot be represented in type 'int' CPU: 0 PID: 20433 Comm: insmod Tainted: G WC OE Call Trace: dump_stack+0x74/0x92 ubsan_epilogue+0x9/0x50 handle_overflow+0x8d/0xd0 __ubsan_handle_mul_overflow+0xe/0x10 nl80211_send_iface+0x688/0x6b0 [cfg80211] [...] cfg80211_register_wdev+0x78/0xb0 [cfg80211] cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211] [...] ieee80211_if_add+0x60e/0x8f0 [mac80211] ieee80211_register_hw+0xda5/0x1170 [mac80211]

In this case, simply return an error instead, to indicate that no data is available.

• https://access.redhat.com/security/cve/CVE-2023-52832
• https://git.kernel.org/stable/c/1571120c44dbe5757aee1612c5b6097cdc42710f
• https://git.kernel.org/stable/c/21a0f310a9f3bfd2b4cf4f382430e638607db846
• https://git.kernel.org/stable/c/298e767362cade639b7121ecb3cc5345b6529f62
• https://git.kernel.org/stable/c/2be24c47ac19bf639c48c082486c08888bd603c6
• https://git.kernel.org/stable/c/5a94cffe90e20e8fade0b9abd4370bd671fe87c7
• https://git.kernel.org/stable/c/717de20abdcd1d4993fa450e28b8086a352620ea
• https://git.kernel.org/stable/c/adc2474d823fe81d8da759207f4f1d3691aa775a
• https://git.kernel.org/stable/c/e160ab85166e77347d0cbe5149045cb25e83937f
• https://git.kernel.org/stable/c/efeae5f4972f75d50002bc50eb112ab9e7069b18