[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-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":39,"aliases":40,"duplicate_of":9,"upstream":41,"downstream":42,"duplicates":77,"related":78,"reserved_at":9,"published_at":90,"modified_at":91,"state":92,"summary":93,"references_raw":102,"kevs":137,"epss":138,"epss_history":141,"metrics":388,"affected":394},"CVE-2021-47468","In the Linux kernel, the following vulnerability has been resolved:\n\nisdn: mISDN: Fix sleeping function called from invalid context\n\nThe driver can call card->isac.release() function from an atomic\ncontext.\n\nFix this by calling this function after releasing the lock.\n\nThe following log reveals it:\n\n[   44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018\n[   44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe\n[   44.169574 ] INFO: lockdep is turned off.\n[   44.169899 ] irq event stamp: 0\n[   44.170160 ] hardirqs last  enabled at (0): [\u003C0000000000000000>] 0x0\n[   44.170627 ] hardirqs last disabled at (0): [\u003Cffffffff814209ed>] copy_process+0x132d/0x3e00\n[   44.171240 ] softirqs last  enabled at (0): [\u003Cffffffff81420a1a>] copy_process+0x135a/0x3e00\n[   44.171852 ] softirqs last disabled at (0): [\u003C0000000000000000>] 0x0\n[   44.172318 ] Preemption disabled at:\n[   44.172320 ] [\u003Cffffffffa009b0a9>] nj_release+0x69/0x500 [netjet]\n[   44.174441 ] Call Trace:\n[   44.174630 ]  dump_stack_lvl+0xa8/0xd1\n[   44.174912 ]  dump_stack+0x15/0x17\n[   44.175166 ]  ___might_sleep+0x3a2/0x510\n[   44.175459 ]  ? nj_release+0x69/0x500 [netjet]\n[   44.175791 ]  __might_sleep+0x82/0xe0\n[   44.176063 ]  ? start_flush_work+0x20/0x7b0\n[   44.176375 ]  start_flush_work+0x33/0x7b0\n[   44.176672 ]  ? trace_irq_enable_rcuidle+0x85/0x170\n[   44.177034 ]  ? kasan_quarantine_put+0xaa/0x1f0\n[   44.177372 ]  ? kasan_quarantine_put+0xaa/0x1f0\n[   44.177711 ]  __flush_work+0x11a/0x1a0\n[   44.177991 ]  ? flush_work+0x20/0x20\n[   44.178257 ]  ? lock_release+0x13c/0x8f0\n[   44.178550 ]  ? __kasan_check_write+0x14/0x20\n[   44.178872 ]  ? do_raw_spin_lock+0x148/0x360\n[   44.179187 ]  ? read_lock_is_recursive+0x20/0x20\n[   44.179530 ]  ? __kasan_check_read+0x11/0x20\n[   44.179846 ]  ? do_raw_spin_unlock+0x55/0x900\n[   44.180168 ]  ? ____kasan_slab_free+0x116/0x140\n[   44.180505 ]  ? _raw_spin_unlock_irqrestore+0x41/0x60\n[   44.180878 ]  ? skb_queue_purge+0x1a3/0x1c0\n[   44.181189 ]  ? kfree+0x13e/0x290\n[   44.181438 ]  flush_work+0x17/0x20\n[   44.181695 ]  mISDN_freedchannel+0xe8/0x100\n[   44.182006 ]  isac_release+0x210/0x260 [mISDNipac]\n[   44.182366 ]  nj_release+0xf6/0x500 [netjet]\n[   44.182685 ]  nj_remove+0x48/0x70 [netjet]\n[   44.182989 ]  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