| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-53086: wifi: mt76: connac: do not check WED status for non-mmio devices |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: mt76: connac: do not check WED status for non-mmio devices |
| |
| WED is supported just for mmio devices, so do not check it for usb or |
| sdio devices. This patch fixes the crash reported below: |
| |
| [ 21.946627] wlp0s3u1i3: authenticate with c4:41:1e:f5:2b:1d |
| [ 22.525298] wlp0s3u1i3: send auth to c4:41:1e:f5:2b:1d (try 1/3) |
| [ 22.548274] wlp0s3u1i3: authenticate with c4:41:1e:f5:2b:1d |
| [ 22.557694] wlp0s3u1i3: send auth to c4:41:1e:f5:2b:1d (try 1/3) |
| [ 22.565885] wlp0s3u1i3: authenticated |
| [ 22.569502] wlp0s3u1i3: associate with c4:41:1e:f5:2b:1d (try 1/3) |
| [ 22.578966] wlp0s3u1i3: RX AssocResp from c4:41:1e:f5:2b:1d (capab=0x11 status=30 aid=3) |
| [ 22.579113] wlp0s3u1i3: c4:41:1e:f5:2b:1d rejected association temporarily; comeback duration 1000 TU (1024 ms) |
| [ 23.649518] wlp0s3u1i3: associate with c4:41:1e:f5:2b:1d (try 2/3) |
| [ 23.752528] wlp0s3u1i3: RX AssocResp from c4:41:1e:f5:2b:1d (capab=0x11 status=0 aid=3) |
| [ 23.797450] wlp0s3u1i3: associated |
| [ 24.959527] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) |
| [ 24.959640] BUG: unable to handle page fault for address: ffff88800c223200 |
| [ 24.959706] #PF: supervisor instruction fetch in kernel mode |
| [ 24.959788] #PF: error_code(0x0011) - permissions violation |
| [ 24.959846] PGD 2c01067 P4D 2c01067 PUD 2c02067 PMD c2a8063 PTE 800000000c223163 |
| [ 24.959957] Oops: 0011 [#1] PREEMPT SMP |
| [ 24.960009] CPU: 0 PID: 391 Comm: wpa_supplicant Not tainted 6.2.0-kvm #18 |
| [ 24.960089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.1-2.fc37 04/01/2014 |
| [ 24.960191] RIP: 0010:0xffff88800c223200 |
| [ 24.960446] RSP: 0018:ffffc90000ff7698 EFLAGS: 00010282 |
| [ 24.960513] RAX: ffff888028397010 RBX: ffff88800c26e630 RCX: 0000000000000058 |
| [ 24.960598] RDX: ffff88800c26f844 RSI: 0000000000000006 RDI: ffff888028397010 |
| [ 24.960682] RBP: ffff88800ea72f00 R08: 18b873fbab2b964c R09: be06b38235f3c63c |
| [ 24.960766] R10: 18b873fbab2b964c R11: be06b38235f3c63c R12: 0000000000000001 |
| [ 24.960853] R13: ffff88800c26f84c R14: ffff8880063f0ff8 R15: ffff88800c26e644 |
| [ 24.960950] FS: 00007effcea327c0(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000 |
| [ 24.961036] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| [ 24.961106] CR2: ffff88800c223200 CR3: 000000000eaa2000 CR4: 00000000000006b0 |
| [ 24.961190] Call Trace: |
| [ 24.961219] <TASK> |
| [ 24.961245] ? mt76_connac_mcu_add_key+0x2cf/0x310 |
| [ 24.961313] ? mt7921_set_key+0x150/0x200 |
| [ 24.961365] ? drv_set_key+0xa9/0x1b0 |
| [ 24.961418] ? ieee80211_key_enable_hw_accel+0xd9/0x240 |
| [ 24.961485] ? ieee80211_key_replace+0x3f3/0x730 |
| [ 24.961541] ? crypto_shash_setkey+0x89/0xd0 |
| [ 24.961597] ? ieee80211_key_link+0x2d7/0x3a0 |
| [ 24.961664] ? crypto_aead_setauthsize+0x31/0x50 |
| [ 24.961730] ? sta_info_hash_lookup+0xa6/0xf0 |
| [ 24.961785] ? ieee80211_add_key+0x1fc/0x250 |
| [ 24.961842] ? rdev_add_key+0x41/0x140 |
| [ 24.961882] ? nl80211_parse_key+0x6c/0x2f0 |
| [ 24.961940] ? nl80211_new_key+0x24a/0x290 |
| [ 24.961984] ? genl_rcv_msg+0x36c/0x3a0 |
| [ 24.962036] ? rdev_mod_link_station+0xe0/0xe0 |
| [ 24.962102] ? nl80211_set_key+0x410/0x410 |
| [ 24.962143] ? nl80211_pre_doit+0x200/0x200 |
| [ 24.962187] ? genl_bind+0xc0/0xc0 |
| [ 24.962217] ? netlink_rcv_skb+0xaa/0xd0 |
| [ 24.962259] ? genl_rcv+0x24/0x40 |
| [ 24.962300] ? netlink_unicast+0x224/0x2f0 |
| [ 24.962345] ? netlink_sendmsg+0x30b/0x3d0 |
| [ 24.962388] ? ____sys_sendmsg+0x109/0x1b0 |
| [ 24.962388] ? ____sys_sendmsg+0x109/0x1b0 |
| [ 24.962440] ? __import_iovec+0x2e/0x110 |
| [ 24.962482] ? ___sys_sendmsg+0xbe/0xe0 |
| [ 24.962525] ? mod_objcg_state+0x25c/0x330 |
| [ 24.962576] ? __dentry_kill+0x19e/0x1d0 |
| [ 24.962618] ? call_rcu+0x18f/0x270 |
| [ 24.962660] ? __dentry_kill+0x19e/0x1d0 |
| [ 24.962702] ? __x64_sys_sendmsg+0x70/0x90 |
| [ 24.962744] ? do_syscall_64+0x3d/0x80 |
| [ 24.962796] ? exit_to_user_mode_prepare+0x1b/0x70 |
| [ 24.962852] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0 |
| [ 24.962913] </TASK> |
| [ 24.962939] Modules linked in: |
| [ 24.962981] CR2: ffff88800c223200 |
| [ 24.963022] ---[ end trace 0000000000000000 ]--- |
| [ 24.963087] RIP: 0010:0xffff88800c223200 |
| [ 24.963323] RSP: 0018:ffffc90000ff7698 EFLAGS: 00010282 |
| [ 24.963376] RAX: ffff888028397010 RBX: ffff88800c26e630 RCX: 0000000000000058 |
| [ 24.963458] RDX: ffff88800c26f844 RSI: 0000000000000006 RDI: ffff888028397010 |
| [ 24.963538] RBP: ffff88800ea72f00 R08: 18b873fbab2b964c R09: be06b38235f3c63c |
| [ 24.963622] R10: 18b873fbab2b964c R11: be06b38235f3c63c R12: 0000000000000001 |
| [ 24.963705] R13: ffff88800c26f84c R14: ffff8880063f0ff8 R15: ffff88800c26e644 |
| [ 24.963788] FS: 00007effcea327c0(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000 |
| [ 24.963871] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| [ 24.963941] CR2: ffff88800c223200 CR3: 000000000eaa2000 CR4: 00000000000006b0 |
| [ 24.964018] note: wpa_supplicant[391] exited with irqs disabled |
| |
| The Linux kernel CVE team has assigned CVE-2023-53086 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit d1369e515efe6b5d04e9a5f5884106643f7b1d8a and fixed in 6.2.9 with commit 53edfda851dd1ce41ac049ce2f195dc41dd27cc1 |
| Issue introduced in 6.2 with commit d1369e515efe6b5d04e9a5f5884106643f7b1d8a and fixed in 6.3 with commit 5683e1488aa9b0805a9403d215e48fed29d6d923 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2023-53086 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/53edfda851dd1ce41ac049ce2f195dc41dd27cc1 |
| https://git.kernel.org/stable/c/5683e1488aa9b0805a9403d215e48fed29d6d923 |
