CVE-2022-48876— Linux kernel 安全漏洞
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 6
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I. CVE-2022-48876の基本情報
脆弱性情報
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脆弱性タイトル
wifi: mac80211: fix initialization of rx->link and rx->link_sta
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix initialization of rx->link and rx->link_sta There are some codepaths that do not initialize rx->link_sta properly. This causes a crash in places which assume that rx->link_sta is valid if rx->sta is valid. One known instance is triggered by __ieee80211_rx_h_amsdu being called from fast-rx. It results in a crash like this one: BUG: kernel NULL pointer dereference, address: 00000000000000a8 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP PTI CPU: 1 PID: 506 Comm: mt76-usb-rx phy Tainted: G E 6.1.0-debian64x+1.7 #3 Hardware name: ZOTAC ZBOX-ID92/ZBOX-IQ01/ZBOX-ID92/ZBOX-IQ01, BIOS B220P007 05/21/2014 RIP: 0010:ieee80211_deliver_skb+0x62/0x1f0 [mac80211] Code: 00 48 89 04 24 e8 9e a7 c3 df 89 c0 48 03 1c c5 a0 ea 39 a1 4c 01 6b 08 48 ff 03 48 83 7d 28 00 74 11 48 8b 45 30 48 63 55 44 <48> 83 84 d0 a8 00 00 00 01 41 8b 86 c0 11 00 00 8d 50 fd 83 fa 01 RSP: 0018:ffff999040803b10 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffb9903f496480 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff999040803ce0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8d21828ac900 R13: 000000000000004a R14: ffff8d2198ed89c0 R15: ffff8d2198ed8000 FS: 0000000000000000(0000) GS:ffff8d24afe80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000a8 CR3: 0000000429810002 CR4: 00000000001706e0 Call Trace: <TASK> __ieee80211_rx_h_amsdu+0x1b5/0x240 [mac80211] ? ieee80211_prepare_and_rx_handle+0xcdd/0x1320 [mac80211] ? __local_bh_enable_ip+0x3b/0xa0 ieee80211_prepare_and_rx_handle+0xcdd/0x1320 [mac80211] ? prepare_transfer+0x109/0x1a0 [xhci_hcd] ieee80211_rx_list+0xa80/0xda0 [mac80211] mt76_rx_complete+0x207/0x2e0 [mt76] mt76_rx_poll_complete+0x357/0x5a0 [mt76] mt76u_rx_worker+0x4f5/0x600 [mt76_usb] ? mt76_get_min_avg_rssi+0x140/0x140 [mt76] __mt76_worker_fn+0x50/0x80 [mt76] kthread+0xed/0x120 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 Since the initialization of rx->link and rx->link_sta is rather convoluted and duplicated in many places, clean it up by using a helper function to set it. [remove unnecessary rx->sta->sta.mlo check]
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Linux kernel 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 wifi/mac80211 组件在初始化rx-link和rx-link_sta时存在问题。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
II. CVE-2022-48876の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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CVE-2022-48876 其他参考 (2)
Same Patch Batch · Linux · 2024-08-21 · 69 CVEs total
| CVE-2022-48877 | f2fs: let's avoid panic if extent_tree is not created | |
| CVE-2024-43874 | crypto: ccp - Fix null pointer dereference in __sev_snp_shutdown_locked | |
| CVE-2024-43873 | vhost/vsock: always initialize seqpacket_allow | |
| CVE-2024-43875 | PCI: endpoint: Clean up error handling in vpci_scan_bus() | |
| CVE-2022-48870 | tty: fix possible null-ptr-defer in spk_ttyio_release | |
| CVE-2022-48871 | tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer | |
| CVE-2022-48872 | misc: fastrpc: Fix use-after-free race condition for maps | |
| CVE-2022-48873 | misc: fastrpc: Don't remove map on creater_process and device_release | |
| CVE-2022-48874 | misc: fastrpc: Fix use-after-free and race in fastrpc_map_find | |
| CVE-2022-48875 | wifi: mac80211: sdata can be NULL during AMPDU start | |
| CVE-2022-48869 | USB: gadgetfs: Fix race between mounting and unmounting | |
| CVE-2022-48878 | Bluetooth: hci_qca: Fix driver shutdown on closed serdev | |
| CVE-2022-48879 | efi: fix NULL-deref in init error path | |
| CVE-2022-48880 | platform/surface: aggregator: Add missing call to ssam_request_sync_free() | |
| CVE-2022-48881 | platform/x86/amd: Fix refcount leak in amd_pmc_probe | |
| CVE-2022-48882 | net/mlx5e: Fix macsec possible null dereference when updating MAC security entity (SecY) | |
| CVE-2022-48883 | net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent | |
| CVE-2022-48884 | net/mlx5: Fix command stats access after free | |
| CVE-2022-48885 | ice: Fix potential memory leak in ice_gnss_tty_write() | |
| CVE-2022-48886 | ice: Add check for kzalloc |
Showing 20 of 69 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Linux
- CVE-2026-64206
Bluetooth: L2CAP: cancel pending_rx_work before taking conn- - CVE-2026-64207
net/sched: dualpi2: fix GSO backlog accounting - CVE-2026-64205
i2c: i801: fix hardware state machine corruption in error pa - CVE-2026-64192
bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM i - CVE-2026-64191
i2c: stub: Reject I2C block transfers with invalid length
同じベンダー: Linux
- CVE-2026-64206
Bluetooth: L2CAP: cancel pending_rx_work before taking conn- - CVE-2026-64207
net/sched: dualpi2: fix GSO backlog accounting - CVE-2026-64205
i2c: i801: fix hardware state machine corruption in error pa - CVE-2026-64192
bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM i - CVE-2026-64191
i2c: stub: Reject I2C block transfers with invalid length
V. CVE-2022-48876へのコメント
まだコメントはありません