CVE-2022-48751
published 2024-06-20CVE-2022-48751: In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in…
PriorityP416medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.22%
12.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
net/smc: Transitional solution for clcsock race issue
We encountered a crash in smc_setsockopt() and it is caused by
accessing smc->clcsock after clcsock was released.
BUG: kernel NULL pointer dereference, address: 0000000000000020
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E 5.16.0-rc4+ #53
RIP: 0010:smc_setsockopt+0x59/0x280 [smc]
Call Trace:
__sys_setsockopt+0xfc/0x190
__x64_sys_setsockopt+0x20/0x30
do_syscall_64+0x34/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f16ba83918e
This patch tries to fix it by holding clcsock_release_lock and
checking whether clcsock has already been released before access.
In case that a crash of the same reason happens in smc_getsockopt()
or smc_switch_to_fallback(), this patch also checkes smc->clcsock
in them too. And the caller of smc_switch_to_fallback() will identify
whether fallback succeeds according to the return value.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.16.7-1 (bookworm) | linux 5.16.7-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 4.19.299 < 4.20 | 4.20 |
| linux | linux | >= fd57770dd198f5b2ddd5b9e6bf282cf98d63adb9 < 38f0bdd548fd2ef5d481b88d8a2bfef968452e34 | 38f0bdd548fd2ef5d481b88d8a2bfef968452e34 |
| linux | linux | >= fd57770dd198f5b2ddd5b9e6bf282cf98d63adb9 < 4284225cd8001e134f5cf533a7cd244bbb654d0f | 4284225cd8001e134f5cf533a7cd244bbb654d0f |
| linux | linux | >= fd57770dd198f5b2ddd5b9e6bf282cf98d63adb9 < c0bf3d8a943b6f2e912b7c1de03e2ef28e76f760 | c0bf3d8a943b6f2e912b7c1de03e2ef28e76f760 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.16.7-1 | 5.16.7-1 |
| linux | linux_kernel | >= 0 < 5.16.7-1 | 5.16.7-1 |
| linux | linux_kernel | >= 0 < 5.16.7-1 | 5.16.7-1 |
| linux | linux_kernel | >= 4.19.299 < 4.20 | 4.20 |
| linux | linux_kernel | >= 5.1 < 5.15.19 | 5.15.19 |
| linux | linux_kernel | >= 5.16 < 5.16.5 | 5.16.5 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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Red Hat
kernel: net/smc: Transitional solution for clcsock race issue
vendor_redhat·2024-06-20·CVSS 4.7
CVE-2022-48751 [MEDIUM] kernel: net/smc: Transitional solution for clcsock race issue
kernel: net/smc: Transitional solution for clcsock race issue
In the Linux kernel, the following vulnerability has been resolved:
net/smc: Transitional solution for clcsock race issue
We encountered a crash in smc_setsockopt() and it is caused by
accessing smc->clcsock after clcsock was released.
BUG: kernel NULL pointer dereference, address: 0000000000000020
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E 5.16.0-rc4+ #53
RIP: 0010:smc_setsockopt+0x59/0x280 [smc]
Call Trace:
__sys_setsockopt+0xfc/0x190
__x64_sys_setsockopt+0x20/0x30
do_syscall_64+0x34/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f16ba83918e
This patch tries to fix it by
Debian
CVE-2022-48751: linux - In the Linux kernel, the following vulnerability has been resolved: net/smc: Tr...
vendor_debian·2022·CVSS 4.7
CVE-2022-48751 [MEDIUM] CVE-2022-48751: linux - In the Linux kernel, the following vulnerability has been resolved: net/smc: Tr...
In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in smc_setsockopt() and it is caused by accessing smc->clcsock after clcsock was released. BUG: kernel NULL pointer dereference, address: 0000000000000020 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E 5.16.0-rc4+ #53 RIP: 0010:smc_setsockopt+0x59/0x280 [smc] Call Trace: __sys_setsockopt+0xfc/0x190 __x64_sys_setsockopt+0x20/0x30 do_syscall_64+0x34/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f16ba83918e This patch tries to fix it by holding clcsock_release_lock and checking whether clcsock has al
GHSA
GHSA-j385-2ppr-7766: In the Linux kernel, the following vulnerability has been resolved:
net/smc: Transitional solution for clcsock race issue
We encountered a crash in
ghsa_unreviewed·2024-06-20
CVE-2022-48751 [MEDIUM] CWE-476 GHSA-j385-2ppr-7766: In the Linux kernel, the following vulnerability has been resolved:
net/smc: Transitional solution for clcsock race issue
We encountered a crash in
In the Linux kernel, the following vulnerability has been resolved:
net/smc: Transitional solution for clcsock race issue
We encountered a crash in smc_setsockopt() and it is caused by
accessing smc->clcsock after clcsock was released.
BUG: kernel NULL pointer dereference, address: 0000000000000020
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E 5.16.0-rc4+ #53
RIP: 0010:smc_setsockopt+0x59/0x280 [smc]
Call Trace:
__sys_setsockopt+0xfc/0x190
__x64_sys_setsockopt+0x20/0x30
do_syscall_64+0x34/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f16ba83918e
This patch tries to fix it by holding clcsock_release_lock and
checking whether clcsock
OSV
CVE-2022-48751: In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in sm
osv·2024-06-20·CVSS 4.7
CVE-2022-48751 [MEDIUM] CVE-2022-48751: In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in sm
In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in smc_setsockopt() and it is caused by accessing smc->clcsock after clcsock was released. BUG: kernel NULL pointer dereference, address: 0000000000000020 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E 5.16.0-rc4+ #53 RIP: 0010:smc_setsockopt+0x59/0x280 [smc] Call Trace: __sys_setsockopt+0xfc/0x190 __x64_sys_setsockopt+0x20/0x30 do_syscall_64+0x34/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f16ba83918e This patch tries to fix it by holding clcsock_release_lock and checking whether clcsock has al
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/38f0bdd548fd2ef5d481b88d8a2bfef968452e34https://git.kernel.org/stable/c/4284225cd8001e134f5cf533a7cd244bbb654d0fhttps://git.kernel.org/stable/c/c0bf3d8a943b6f2e912b7c1de03e2ef28e76f760https://git.kernel.org/stable/c/38f0bdd548fd2ef5d481b88d8a2bfef968452e34https://git.kernel.org/stable/c/4284225cd8001e134f5cf533a7cd244bbb654d0fhttps://git.kernel.org/stable/c/c0bf3d8a943b6f2e912b7c1de03e2ef28e76f760
2024-06-20
Published