{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-46749","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-09-11T15:12:18.267Z","datePublished":"2024-09-18T07:12:09.594Z","dateUpdated":"2025-05-04T09:33:21.676Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:33:21.676Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btnxpuart: Fix Null pointer dereference in btnxpuart_flush()\n\nThis adds a check before freeing the rx->skb in flush and close\nfunctions to handle the kernel crash seen while removing driver after FW\ndownload fails or before FW download completes.\n\ndmesg log:\n[   54.634586] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000080\n[   54.643398] Mem abort info:\n[   54.646204]   ESR = 0x0000000096000004\n[   54.649964]   EC = 0x25: DABT (current EL), IL = 32 bits\n[   54.655286]   SET = 0, FnV = 0\n[   54.658348]   EA = 0, S1PTW = 0\n[   54.661498]   FSC = 0x04: level 0 translation fault\n[   54.666391] Data abort info:\n[   54.669273]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[   54.674768]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[   54.674771]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[   54.674775] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000048860000\n[   54.674780] [0000000000000080] pgd=0000000000000000, p4d=0000000000000000\n[   54.703880] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n[   54.710152] Modules linked in: btnxpuart(-) overlay fsl_jr_uio caam_jr caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine authenc libdes crct10dif_ce polyval_ce polyval_generic snd_soc_imx_spdif snd_soc_imx_card snd_soc_ak5558 snd_soc_ak4458 caam secvio error snd_soc_fsl_micfil snd_soc_fsl_spdif snd_soc_fsl_sai snd_soc_fsl_utils imx_pcm_dma gpio_ir_recv rc_core sch_fq_codel fuse\n[   54.744357] CPU: 3 PID: 72 Comm: kworker/u9:0 Not tainted 6.6.3-otbr-g128004619037 #2\n[   54.744364] Hardware name: FSL i.MX8MM EVK board (DT)\n[   54.744368] Workqueue: hci0 hci_power_on\n[   54.757244] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   54.757249] pc : kfree_skb_reason+0x18/0xb0\n[   54.772299] lr : btnxpuart_flush+0x40/0x58 [btnxpuart]\n[   54.782921] sp : ffff8000805ebca0\n[   54.782923] x29: ffff8000805ebca0 x28: ffffa5c6cf1869c0 x27: ffffa5c6cf186000\n[   54.782931] x26: ffff377b84852400 x25: ffff377b848523c0 x24: ffff377b845e7230\n[   54.782938] x23: ffffa5c6ce8dbe08 x22: ffffa5c6ceb65410 x21: 00000000ffffff92\n[   54.782945] x20: ffffa5c6ce8dbe98 x19: ffffffffffffffac x18: ffffffffffffffff\n[   54.807651] x17: 0000000000000000 x16: ffffa5c6ce2824ec x15: ffff8001005eb857\n[   54.821917] x14: 0000000000000000 x13: ffffa5c6cf1a02e0 x12: 0000000000000642\n[   54.821924] x11: 0000000000000040 x10: ffffa5c6cf19d690 x9 : ffffa5c6cf19d688\n[   54.821931] x8 : ffff377b86000028 x7 : 0000000000000000 x6 : 0000000000000000\n[   54.821938] x5 : ffff377b86000000 x4 : 0000000000000000 x3 : 0000000000000000\n[   54.843331] x2 : 0000000000000000 x1 : 0000000000000002 x0 : ffffffffffffffac\n[   54.857599] Call trace:\n[   54.857601]  kfree_skb_reason+0x18/0xb0\n[   54.863878]  btnxpuart_flush+0x40/0x58 [btnxpuart]\n[   54.863888]  hci_dev_open_sync+0x3a8/0xa04\n[   54.872773]  hci_power_on+0x54/0x2e4\n[   54.881832]  process_one_work+0x138/0x260\n[   54.881842]  worker_thread+0x32c/0x438\n[   54.881847]  kthread+0x118/0x11c\n[   54.881853]  ret_from_fork+0x10/0x20\n[   54.896406] Code: a9be7bfd 910003fd f9000bf3 aa0003f3 (b940d400)\n[   54.896410] ---[ end trace 0000000000000000 ]---"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btnxpuart.c"],"versions":[{"version":"ab3a769b4dccec2cf60f0a0700b140991bf9afc8","lessThan":"013dae4735d2010544d1f2121bdeb8e6c9ea171e","status":"affected","versionType":"git"},{"version":"ab3a769b4dccec2cf60f0a0700b140991bf9afc8","lessThan":"056e0cd381d59a9124b7c43dd715e15f56a11635","status":"affected","versionType":"git"},{"version":"ab3a769b4dccec2cf60f0a0700b140991bf9afc8","lessThan":"c68bbf5e334b35b36ac5b9f0419f1f93f796bad1","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btnxpuart.c"],"versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","status":"unaffected","versionType":"semver"},{"version":"6.6.51","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.10.10","lessThanOrEqual":"6.10.*","status":"unaffected","versionType":"semver"},{"version":"6.11","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.10.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.11"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/013dae4735d2010544d1f2121bdeb8e6c9ea171e"},{"url":"https://git.kernel.org/stable/c/056e0cd381d59a9124b7c43dd715e15f56a11635"},{"url":"https://git.kernel.org/stable/c/c68bbf5e334b35b36ac5b9f0419f1f93f796bad1"}],"title":"Bluetooth: btnxpuart: Fix Null pointer dereference in btnxpuart_flush()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-29T14:48:08.619497Z","id":"CVE-2024-46749","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-29T14:48:22.391Z"}}]}}