2024-10-21 14:03:55 +00:00
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{
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"id": "CVE-2024-47715",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-10-21T12:15:07.870",
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2024-10-21 18:03:24 +00:00
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"lastModified": "2024-10-21T17:09:45.417",
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"vulnStatus": "Awaiting Analysis",
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2024-10-21 14:03:55 +00:00
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: fix oops on non-dbdc mt7986\n\nmt7915_band_config() sets band_idx = 1 on the main phy for mt7986\nwith MT7975_ONE_ADIE or MT7976_ONE_ADIE.\n\nCommit 0335c034e726 (\"wifi: mt76: fix race condition related to\nchecking tx queue fill status\") introduced a dereference of the\nphys array indirectly indexed by band_idx via wcid->phy_idx in\nmt76_wcid_cleanup(). This caused the following Oops on affected\nmt7986 devices:\n\n Unable to handle kernel read from unreadable memory at virtual address 0000000000000024\n Mem abort info:\n ESR = 0x0000000096000005\n EC = 0x25: DABT (current EL), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x05: level 1 translation fault\n Data abort info:\n ISV = 0, ISS = 0x00000005\n CM = 0, WnR = 0\n user pgtable: 4k pages, 39-bit VAs, pgdp=0000000042545000\n [0000000000000024] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\n Internal error: Oops: 0000000096000005 [#1] SMP\n Modules linked in: ... mt7915e mt76_connac_lib mt76 mac80211 cfg80211 ...\n CPU: 2 PID: 1631 Comm: hostapd Not tainted 5.15.150 #0\n Hardware name: ZyXEL EX5700 (Telenor) (DT)\n pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : mt76_wcid_cleanup+0x84/0x22c [mt76]\n lr : mt76_wcid_cleanup+0x64/0x22c [mt76]\n sp : ffffffc00a803700\n x29: ffffffc00a803700 x28: ffffff80008f7300 x27: ffffff80003f3c00\n x26: ffffff80000a7880 x25: ffffffc008c26e00 x24: 0000000000000001\n x23: ffffffc000a68114 x22: 0000000000000000 x21: ffffff8004172cc8\n x20: ffffffc00a803748 x19: ffffff8004152020 x18: 0000000000000000\n x17: 00000000000017c0 x16: ffffffc008ef5000 x15: 0000000000000be0\n x14: ffffff8004172e28 x13: ffffff8004172e28 x12: 0000000000000000\n x11: 0000000000000000 x10: ffffff8004172e30 x9 : ffffff8004172e28\n x8 : 0000000000000000 x7 : ffffff8004156020 x6 : 0000000000000000\n x5 : 0000000000000031 x4 : 0000000000000000 x3 : 0000000000000001\n x2 : 0000000000000000 x1 : ffffff80008f7300 x0 : 0000000000000024\n Call trace:\n mt76_wcid_cleanup+0x84/0x22c [mt76]\n __mt76_sta_remove+0x70/0xbc [mt76]\n mt76_sta_state+0x8c/0x1a4 [mt76]\n mt7915_eeprom_get_power_delta+0x11e4/0x23a0 [mt7915e]\n drv_sta_state+0x144/0x274 [mac80211]\n sta_info_move_state+0x1cc/0x2a4 [mac80211]\n sta_set_sinfo+0xaf8/0xc24 [mac80211]\n sta_info_destroy_addr_bss+0x4c/0x6c [mac80211]\n\n ieee80211_color_change_finish+0x1c08/0x1e70 [mac80211]\n cfg80211_check_station_change+0x1360/0x4710 [cfg80211]\n genl_family_rcv_msg_doit+0xb4/0x110\n genl_rcv_msg+0xd0/0x1bc\n netlink_rcv_skb+0x58/0x120\n genl_rcv+0x34/0x50\n netlink_unicast+0x1f0/0x2ec\n netlink_sendmsg+0x198/0x3d0\n ____sys_sendmsg+0x1b0/0x210\n ___sys_sendmsg+0x80/0xf0\n __sys_sendmsg+0x44/0xa0\n __arm64_sys_sendmsg+0x20/0x30\n invoke_syscall.constprop.0+0x4c/0xe0\n do_el0_svc+0x40/0xd0\n el0_svc+0x14/0x4c\n el0t_64_sync_handler+0x100/0x110\n el0t_64_sync+0x15c/0x160\n Code: d2800002 910092c0 52800023 f9800011 (885f7c01)\n ---[ end trace 7e42dd9a39ed2281 ]---\n\nFix by using mt76_dev_phy() which will map band_idx to the correct phy\nfor all hardware combinations."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/7c128f3ff0be5802aef66f332e4bba6afe98735e",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/818dd118f4a997f8b4fe9c010b22402d410a2424",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/862bf7cbd772c2bad570ef0c5b5556a1330656dd",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/a94d2bd111b39f0c2c7fcbfbf8276ab98c3b8353",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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}
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