CVE-2021-47540
published 2024-05-24CVE-2021-47540: In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix the following NULL…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
Fix the following NULL pointer dereference in mt7915_get_phy_mode
routine adding an ibss interface to the mt7915 driver.
[ 101.137097] wlan0: Trigger new scan to find an IBSS to join
[ 102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69
[ 103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[ 103.073670] Mem abort info:
[ 103.076520] ESR = 0x96000005
[ 103.079614] EC = 0x25: DABT (current EL), IL = 32 bits
[ 103.084934] SET = 0, FnV = 0
[ 103.088042] EA = 0, S1PTW = 0
[ 103.091215] Data abort info:
[ 103.094104] ISV = 0, ISS = 0x00000005
[ 103.098041] CM = 0, WnR = 0
[ 103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000
[ 103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000
[ 103.116590] Internal error: Oops: 96000005 [#1] SMP
[ 103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0
[ 103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT)
[ 103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211]
[ 103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)
[ 103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e]
[ 103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e]
[ 103.223927] sp : ffffffc011cdb9e0
[ 103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098
[ 103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40
[ 103.237855] x25: 0000000000000001 x24: 000000000000011f
[ 103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918
[ 103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58
[ 103.253785] x19: ffffff8006744400 x18: 0000000000000000
[ 103.259094] x17: 0000000000000000 x16: 0000000000000001
[ 103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8
[ 103.269713] x13: 0000000000000000 x12: 0000000000000000
[ 103.275024] x11: ffffffc010e30c20 x10: 0000000000000000
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.15.15-1 (bookworm) | linux 5.15.15-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 932b338f4e5c4cb0c2ed640da3bced1e63620198 | 932b338f4e5c4cb0c2ed640da3bced1e63620198 |
| linux | linux | >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 14b03b8cebdf18ff13c39d58501b625411314de2 | 14b03b8cebdf18ff13c39d58501b625411314de2 |
| linux | linux | >= e57b7901469fc0b021930b83a8094baaf3d81b09 < 6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c | 6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c |
| linux | linux_kernel | >= 0 < 5.10.84-1 | 5.10.84-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 5.11 < 5.15.7 | 5.15.7 |
| linux | linux_kernel | >= 5.8 < 5.10.84 | 5.10.84 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
vendor_redhat·2024-05-24·CVSS 5.5
CVE-2021-47540 [MEDIUM] CWE-476 kernel: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
kernel: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
In the Linux kernel, the following vulnerability has been resolved:
mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
Fix the following NULL pointer dereference in mt7915_get_phy_mode
routine adding an ibss interface to the mt7915 driver.
[ 101.137097] wlan0: Trigger new scan to find an IBSS to join
[ 102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69
[ 103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[ 103.073670] Mem abort info:
[ 103.076520] ESR = 0x96000005
[ 103.079614] EC = 0x25: DABT (current EL), IL = 32 bits
[ 103.084934] SET = 0, FnV = 0
[ 103.088042] EA = 0, S1PTW = 0
[ 103.091215] Data abort info:
[ 103.094104] ISV = 0, IS
Debian
CVE-2021-47540: linux - In the Linux kernel, the following vulnerability has been resolved: mt76: mt791...
vendor_debian·2021·CVSS 5.5
CVE-2021-47540 [MEDIUM] CVE-2021-47540: linux - In the Linux kernel, the following vulnerability has been resolved: mt76: mt791...
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix the following NULL pointer dereference in mt7915_get_phy_mode routine adding an ibss interface to the mt7915 driver. [ 101.137097] wlan0: Trigger new scan to find an IBSS to join [ 102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69 [ 103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 103.073670] Mem abort info: [ 103.076520] ESR = 0x96000005 [ 103.079614] EC = 0x25: DABT (current EL), IL = 32 bits [ 103.084934] SET = 0, FnV = 0 [ 103.088042] EA = 0, S1PTW = 0 [ 103.091215] Data abort info: [ 103.094104] ISV = 0, ISS = 0x00000005 [ 103.098041] CM = 0, WnR = 0 [ 103.101044] user pgtable: 4k
OSV
CVE-2021-47540: In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix the followin
osv·2024-05-24·CVSS 5.5
CVE-2021-47540 [MEDIUM] CVE-2021-47540: In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix the followin
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix the following NULL pointer dereference in mt7915_get_phy_mode routine adding an ibss interface to the mt7915 driver. [ 101.137097] wlan0: Trigger new scan to find an IBSS to join [ 102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69 [ 103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 103.073670] Mem abort info: [ 103.076520] ESR = 0x96000005 [ 103.079614] EC = 0x25: DABT (current EL), IL = 32 bits [ 103.084934] SET = 0, FnV = 0 [ 103.088042] EA = 0, S1PTW = 0 [ 103.091215] Data abort info: [ 103.094104] ISV = 0, ISS = 0x00000005 [ 103.098041] CM = 0, WnR = 0 [ 103.101044] user pgtable: 4k
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5chttps://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5chttps://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198
2024-05-24
Published