CVE-2022-50374
published 2025-09-17CVE-2022-50374: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporting NULL…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.19%
8.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],
for rcu_sync_enter() is called without rcu_sync_init() due to
hci_uart_tty_open() ignoring percpu_init_rwsem() failure.
While we are at it, fix that hci_uart_register_device() ignores
percpu_init_rwsem() failure and hci_uart_unregister_device() does not
call percpu_free_rwsem().
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.3-1 (bookworm) | linux 6.0.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 4.14.63 < 4.15 | 4.15 |
| linux | linux | >= 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 < d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d | d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d |
| linux | linux | >= 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 < b8917dce2134739b39bc0a5648b18427f2cad569 | b8917dce2134739b39bc0a5648b18427f2cad569 |
| linux | linux | >= 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 < 75b2c71ea581c7bb1303860d89366a42ad0506d2 | 75b2c71ea581c7bb1303860d89366a42ad0506d2 |
| linux | linux | >= 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 < 98ce10f3f345e61fc6c83bff9cd11cda252b05ac | 98ce10f3f345e61fc6c83bff9cd11cda252b05ac |
| linux | linux | >= 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 < 3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1 | 3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1 |
| linux | linux_kernel | >= 0 < 5.10.158-1 | 5.10.158-1 |
| linux | linux_kernel | >= 0 < 6.0.3-1 | 6.0.3-1 |
| linux | linux_kernel | >= 0 < 6.0.3-1 | 6.0.3-1 |
| linux | linux_kernel | >= 0 < 6.0.3-1 | 6.0.3-1 |
| linux | linux_kernel | >= 4.14.63 < 4.15 | 4.15 |
| linux | linux_kernel | >= 4.14.63 < 5.10.150 | 5.10.150 |
| linux | linux_kernel | >= 5.11 < 5.15.75 | 5.15.75 |
| linux | linux_kernel | >= 5.16 < 5.19.17 | 5.19.17 |
| linux | linux_kernel | >= 6.0 < 6.0.3 | 6.0.3 |
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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OSV
CVE-2022-50374: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporti
osv·2025-09-17·CVSS 5.5
CVE-2022-50374 [MEDIUM] CVE-2022-50374: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporti
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1], for rcu_sync_enter() is called without rcu_sync_init() due to hci_uart_tty_open() ignoring percpu_init_rwsem() failure. While we are at it, fix that hci_uart_register_device() ignores percpu_init_rwsem() failure and hci_uart_unregister_device() does not call percpu_free_rwsem().
GHSA
GHSA-jrjj-g8hj-84fg: In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
syzbot is repor
ghsa_unreviewed·2025-09-17
CVE-2022-50374 [MEDIUM] CWE-908 GHSA-jrjj-g8hj-84fg: In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
syzbot is repor
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],
for rcu_sync_enter() is called without rcu_sync_init() due to
hci_uart_tty_open() ignoring percpu_init_rwsem() failure.
While we are at it, fix that hci_uart_register_device() ignores
percpu_init_rwsem() failure and hci_uart_unregister_device() does not
call percpu_free_rwsem().
Red Hat
kernel: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
vendor_redhat·2025-09-17·CVSS 5.5
CVE-2022-50374 [MEDIUM] CWE-476 kernel: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
kernel: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],
for rcu_sync_enter() is called without rcu_sync_init() due to
hci_uart_tty_open() ignoring percpu_init_rwsem() failure.
While we are at it, fix that hci_uart_register_device() ignores
percpu_init_rwsem() failure and hci_uart_unregister_device() does not
call percpu_free_rwsem().
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7
Debian
CVE-2022-50374: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...
vendor_debian·2022·CVSS 5.5
CVE-2022-50374 [MEDIUM] CVE-2022-50374: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1], for rcu_sync_enter() is called without rcu_sync_init() due to hci_uart_tty_open() ignoring percpu_init_rwsem() failure. While we are at it, fix that hci_uart_register_device() ignores percpu_init_rwsem() failure and hci_uart_unregister_device() does not call percpu_free_rwsem().
Scope: local
bookworm: resolved (fixed in 6.0.3-1)
bullseye: resolved (fixed in 5.10.158-1)
forky: resolved (fixed in 6.0.3-1)
sid: resolved (fixed in 6.0.3-1)
trixie: resolved (fixed in 6.0.3-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05achttps://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d
2025-09-17
Published