CVE-2021-47468
published 2024-05-22CVE-2021-47468: In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: Fix sleeping function called from invalid context The driver can call…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.18%
7.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
isdn: mISDN: Fix sleeping function called from invalid context
The driver can call card->isac.release() function from an atomic
context.
Fix this by calling this function after releasing the lock.
The following log reveals it:
[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0): [] 0x0
[ 44.172318 ] Preemption disabled at:
[ 44.172320 ] [] nj_release+0x69/0x500 [netjet]
[ 44.174441 ] Call Trace:
[ 44.174630 ] dump_stack_lvl+0xa8/0xd1
[ 44.174912 ] dump_stack+0x15/0x17
[ 44.175166 ] ___might_sleep+0x3a2/0x510
[ 44.175459 ] ? nj_release+0x69/0x500 [netjet]
[ 44.175791 ] __might_sleep+0x82/0xe0
[ 44.176063 ] ? start_flush_work+0x20/0x7b0
[ 44.176375 ] start_flush_work+0x33/0x7b0
[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170
[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177711 ] __flush_work+0x11a/0x1a0
[ 44.177991 ] ? flush_work+0x20/0x20
[ 44.178257 ] ? lock_release+0x13c/0x8f0
[ 44.178550 ] ? __kasan_check_write+0x14/0x20
[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360
[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20
[ 44.179530 ] ? __kasan_check_read+0x11/0x20
[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900
[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140
[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60
[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0
[ 44.181189 ] ? kfree+0x13e/0x290
[ 44.181438 ] flush_work+0x17/0x20
[ 44.181695 ] mISDN_freedchannel+0xe8/0x100
[ 44.182006 ] isac_release+0x210/0x26
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.16-1 (bookworm) | linux 5.14.16-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < 6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b | 6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < ef269a8808cb1759245a98a7fe16fceaebad894c | ef269a8808cb1759245a98a7fe16fceaebad894c |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < 37e4f57b22cc5ebb3f80cf0f74fdeb487f082367 | 37e4f57b22cc5ebb3f80cf0f74fdeb487f082367 |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < a5b34409d3fc52114c828be4adbc30744fa3258b | a5b34409d3fc52114c828be4adbc30744fa3258b |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < 4054b869dc263228d30a4755800b78f0f2ba0c89 | 4054b869dc263228d30a4755800b78f0f2ba0c89 |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < 9f591cbdbed3d7822b2bdba89b34a6d7b434317d | 9f591cbdbed3d7822b2bdba89b34a6d7b434317d |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < f5966ba53013149bcf94e1536644a958dd00a026 | f5966ba53013149bcf94e1536644a958dd00a026 |
| linux | linux | >= a900845e56617edc005fd8f35bfd5a407aaf96c8 < 6510e80a0b81b5d814e3aea6297ba42f5e76f73c | 6510e80a0b81b5d814e3aea6297ba42f5e76f73c |
| linux | linux_kernel | < 4.4.290 | 4.4.290 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.84-1 | 5.10.84-1 |
| linux | linux_kernel | >= 0 < 5.14.16-1 | 5.14.16-1 |
| linux | linux_kernel | >= 0 < 5.14.16-1 | 5.14.16-1 |
| linux | linux_kernel | >= 0 < 5.14.16-1 | 5.14.16-1 |
| linux | linux_kernel | >= 4.10 < 4.14.253 | 4.14.253 |
| linux | linux_kernel | >= 4.15 < 4.19.214 | 4.19.214 |
| linux | linux_kernel | >= 4.20 < 5.4.156 | 5.4.156 |
| linux | linux_kernel | >= 4.5 < 4.9.288 | 4.9.288 |
| linux | linux_kernel | >= 5.11 < 5.14.15 | 5.14.15 |
| linux | linux_kernel | >= 5.5 < 5.10.76 | 5.10.76 |
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: isdn: mISDN: Fix sleeping function called from invalid context
vendor_redhat·2024-05-22·CVSS 5.5
CVE-2021-47468 [MEDIUM] CWE-99 kernel: isdn: mISDN: Fix sleeping function called from invalid context
kernel: isdn: mISDN: Fix sleeping function called from invalid context
In the Linux kernel, the following vulnerability has been resolved:
isdn: mISDN: Fix sleeping function called from invalid context
The driver can call card->isac.release() function from an atomic
context.
Fix this by calling this function after releasing the lock.
The following log reveals it:
[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] co
Debian
CVE-2021-47468: linux - In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN...
vendor_debian·2021·CVSS 5.5
CVE-2021-47468 [MEDIUM] CVE-2021-47468: linux - In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN...
In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: Fix sleeping function called from invalid context The driver can call card->isac.release() function from an atomic context. Fix this by calling this function after releasing the lock. The following log reveals it: [ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018 [ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe [ 44.169574 ] INFO: lockdep is turned off. [ 44.169899 ] irq event stamp: 0 [ 44.170160 ] hardirqs last enabled at (0): [] 0x0 [ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00 [ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00 [ 44.171852 ] softirqs last disabled at (0): []
OSV
CVE-2021-47468: In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: Fix sleeping function called from invalid context The driver can call
osv·2024-05-22·CVSS 5.5
CVE-2021-47468 [MEDIUM] CVE-2021-47468: In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: Fix sleeping function called from invalid context The driver can call
In the Linux kernel, the following vulnerability has been resolved: isdn: mISDN: Fix sleeping function called from invalid context The driver can call card->isac.release() function from an atomic context. Fix this by calling this function after releasing the lock. The following log reveals it: [ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018 [ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe [ 44.169574 ] INFO: lockdep is turned off. [ 44.169899 ] irq event stamp: 0 [ 44.170160 ] hardirqs last enabled at (0): [] 0x0 [ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00 [ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00 [ 44.171852 ] softirqs last disabled at (0): []
GHSA
GHSA-hh73-mjw2-25fw: In the Linux kernel, the following vulnerability has been resolved:
isdn: mISDN: Fix sleeping function called from invalid context
The driver can ca
ghsa_unreviewed·2024-05-22
CVE-2021-47468 [MEDIUM] CWE-667 GHSA-hh73-mjw2-25fw: In the Linux kernel, the following vulnerability has been resolved:
isdn: mISDN: Fix sleeping function called from invalid context
The driver can ca
In the Linux kernel, the following vulnerability has been resolved:
isdn: mISDN: Fix sleeping function called from invalid context
The driver can call card->isac.release() function from an atomic
context.
Fix this by calling this function after releasing the lock.
The following log reveals it:
[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73chttps://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372bhttps://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317dhttps://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258bhttps://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894chttps://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026https://git.kernel.org/stable/c/37e4f57b22cc5ebb3f80cf0f74fdeb487f082367https://git.kernel.org/stable/c/4054b869dc263228d30a4755800b78f0f2ba0c89https://git.kernel.org/stable/c/6510e80a0b81b5d814e3aea6297ba42f5e76f73chttps://git.kernel.org/stable/c/6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372bhttps://git.kernel.org/stable/c/9f591cbdbed3d7822b2bdba89b34a6d7b434317dhttps://git.kernel.org/stable/c/a5b34409d3fc52114c828be4adbc30744fa3258bhttps://git.kernel.org/stable/c/ef269a8808cb1759245a98a7fe16fceaebad894chttps://git.kernel.org/stable/c/f5966ba53013149bcf94e1536644a958dd00a026
2024-05-22
Published