[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2021-47468":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-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 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): [\u003C0000000000000000>] 0x0 [   44.170627 ] hardirqs last disabled at (0): [\u003Cffffffff814209ed>] copy_process+0x132d/0x3e00 [   44.171240 ] softirqs last  enabled at (0): [\u003Cffffffff81420a1a>] copy_process+0x135a/0x3e00 [   44.171852 ] softirqs last disabled at (0): [\u003C0000000000000000>] 0x0 [   44.172318 ] Preemption disabled at: [   44.172320 ] [\u003Cffffffffa009b0a9>] 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+0x210/0x260 [mISDNipac] [   44.182366 ]  nj_release+0xf6/0x500 [netjet] [   44.182685 ]  nj_remove+0x48/0x70 [netjet] [   44.182989 ]  pci_device_remove+0xa9/0x250",null,[],[],[],[14],{"_key":15},"CVE-2021-47468",[],[],[],"2024-05-22T07:15:11.603Z","2026-04-28T20:23:29.415079Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2021-47468",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,52,55,56],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt5_10_84_1",true,"ecosystem","5.10.84-1","excluding",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},"lt5_14_16_1","5.14.16-1",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9}]