CVSS: 4.4EPSS: 0%CPEs: 7EXPL: 0CVE-2024-26872 – RDMA/srpt: Do not register event handler until srpt device is fully setup
https://notcve.org/view.php?id=CVE-2024-26872
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Do not register event handler until srpt device is fully setup Upon rare occasions, KASAN reports a use-after-free Write in srpt_refresh_port(). This seems to be because an event handler is registered before the srpt device is fully setup and a race condition upon error may leave a partially setup event handler in place. Instead, only register the event handler after srpt device initialization is complete. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: RDMA/srpt: no registrar el controlador de eventos hasta que el dispositivo srpt esté completamente configurado. En raras ocasiones, KASAN informa una escritura de use-after-free en srpt_refresh_port(). Esto parece deberse a que se registra un controlador de eventos antes de que el dispositivo srpt esté completamente configurado y una condición de carrera en caso de error puede dejar en su lugar un controlador de eventos parcialmente configurado. En su lugar, registre el controlador de eventos solo después de que se complete la inicialización del dispositivo srpt. • https://git.kernel.org/stable/c/a42d985bd5b234da8b61347a78dc3057bf7bb94d https://git.kernel.org/stable/c/bdd895e0190c464f54f84579e7535d80276f0fc5 https://git.kernel.org/stable/c/6413e78086caf7bf15639923740da0d91fdfd090 https://git.kernel.org/stable/c/e362d007294955a4fb929e1c8978154a64efdcb6 https://git.kernel.org/stable/c/85570b91e4820a0db9d9432098778cafafa7d217 https://git.kernel.org/stable/c/7104a00fa37ae898a827381f1161fa3286c8b346 https://git.kernel.org/stable/c/ec77fa12da41260c6bf9e060b89234b980c5130f https://git.kernel.org/stable/c/c21a8870c98611e8f892511825c9607f1 • CWE-416: Use After Free •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-26863 – hsr: Fix uninit-value access in hsr_get_node()
https://notcve.org/view.php?id=CVE-2024-26863
In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsr_get_node() KMSAN reported the following uninit-value access issue [1]: ===================================================== BUG: KMSAN: uninit-value in hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246 hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246 fill_frame_info net/hsr/hsr_forward.c:577 [inline] hsr_forward_skb+0xe12/0x30e0 net/hsr/hsr_forward.c:615 hsr_dev_xmit+0x1a1/0x270 net/hsr/hsr_device.c:223 __netdev_start_xmit include/linux/netdevice.h:4940 [inline] netdev_start_xmit include/linux/netdevice.h:4954 [inline] xmit_one net/core/dev.c:3548 [inline] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3087 [inline] packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560 __alloc_skb+0x318/0x740 net/core/skbuff.c:651 alloc_skb include/linux/skbuff.h:1286 [inline] alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334 sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2787 packet_alloc_skb net/packet/af_packet.c:2936 [inline] packet_snd net/packet/af_packet.c:3030 [inline] packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5033 Comm: syz-executor334 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 ===================================================== If the packet type ID field in the Ethernet header is either ETH_P_PRP or ETH_P_HSR, but it is not followed by an HSR tag, hsr_get_skb_sequence_nr() reads an invalid value as a sequence number. This causes the above issue. This patch fixes the issue by returning NULL if the Ethernet header is not followed by an HSR tag. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: hsr: corrigió el acceso a valores uninit en hsr_get_node() KMSAN informó el siguiente problema de acceso a valores uninit [1]: ============== ======================================= ERROR: KMSAN: valor uninit en hsr_get_node+0xa2e /0xa40 net/hsr/hsr_framereg.c:246 hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246 fill_frame_info net/hsr/hsr_forward.c:577 [en línea] hsr_forward_skb+0xe12/0x30e0 net/hsr/hsr_forward.c :615 hsr_dev_xmit+0x1a1/0x270 net/hsr/hsr_device.c:223 __netdev_start_xmit include/linux/netdevice.h:4940 [en línea] netdev_start_xmit include/linux/netdevice.h:4954 [en línea] xmit_one net/core/dev.c :3548 [en línea] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [en línea] paquete_xmit+0x9c/ 0x6b0 net/packet/af_packet.c:276 paquete_snd net/packet/af_packet.c:3087 [en línea] paquete_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119 sock_sendmsg_nosec net/socket.c:730 [en línea] __sock_sendmsg neto /socket.c:745 [en línea] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [en línea] __se_sys_sendto net/socket.c:2199 [en línea] __x64_sys_sendto+0x125/0x1c0 socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [en línea] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit se creó en slab_post_alloc_hook+0x129/ 0xa70 mm/slab.h: 768 slab_alloc_node mm/slub.c: 3478 [inline] kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c: 3523 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c: 560 __b.biloc. 740 net/core/skbuff.c:651 alloc_skb include/linux/skbuff.h:1286 [en línea] alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334 sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2787 paquete_alloc_skb net/packet/af_packet.c:2936 [en línea] paquete_snd net/packet/af_packet.c:3030 [en línea] paquete_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119 sock_sendmsg_nosec net/socket.c:730 [en línea ] __sock_sendmsg net/socket.c:745 [en línea] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [en línea] __se_sys_sendto net/socket.c:2199 [en línea] x125/ 0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [en línea] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5033 Comm: syz-executor334 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 17/11/2023 ============== ======================================== Si el campo ID de tipo de paquete en el encabezado Ethernet es ETH_P_PRP o ETH_P_HSR, pero no va seguido de una etiqueta HSR, hsr_get_skb_sequence_nr() lee un valor no válido como un número de secuencia. Esto causa el problema anterior. Este parche soluciona el problema al devolver NULL si el encabezado Ethernet no va seguido de una etiqueta HSR. • https://git.kernel.org/stable/c/f266a683a4804dc499efc6c2206ef68efed029d0 https://git.kernel.org/stable/c/e3b2bfb8ff1810a537b2aa55ba906a6743ed120c https://git.kernel.org/stable/c/889ed056eae7fda85b769a9ab33c093379c45428 https://git.kernel.org/stable/c/7fb2d4d6bb1c85f7a23aace0ed6c86a95dea792a https://git.kernel.org/stable/c/a809bbfd0e503351d3051317288a70a4569a4949 https://git.kernel.org/stable/c/1ed222ca7396938eb1ab2d034f1ba0d8b00a7122 https://git.kernel.org/stable/c/39cc316fb3bc5e7c9dc5eed314fe510d119c6862 https://git.kernel.org/stable/c/97d2148ea435dff4b4e71817c9032eb32 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2023-52644 – wifi: b43: Stop/wake correct queue in DMA Tx path when QoS is disabled
https://notcve.org/view.php?id=CVE-2023-52644
In the Linux kernel, the following vulnerability has been resolved: wifi: b43: Stop/wake correct queue in DMA Tx path when QoS is disabled When QoS is disabled, the queue priority value will not map to the correct ieee80211 queue since there is only one queue. Stop/wake queue 0 when QoS is disabled to prevent trying to stop/wake a non-existent queue and failing to stop/wake the actual queue instantiated. Log of issue before change (with kernel parameter qos=0): [ +5.112651] ------------[ cut here ]------------ [ +0.000005] WARNING: CPU: 7 PID: 25513 at net/mac80211/util.c:449 __ieee80211_wake_queue+0xd5/0x180 [mac80211] [ +0.000067] Modules linked in: b43(O) snd_seq_dummy snd_hrtimer snd_seq snd_seq_device nft_chain_nat xt_MASQUERADE nf_nat xfrm_user xfrm_algo xt_addrtype overlay ccm af_packet amdgpu snd_hda_codec_cirrus snd_hda_codec_generic ledtrig_audio drm_exec amdxcp gpu_sched xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_rpfilter ipt_rpfilter xt_pkttype xt_LOG nf_log_syslog xt_tcpudp nft_compat nf_tables nfnetlink sch_fq_codel btusb uinput iTCO_wdt ctr btrtl intel_pmc_bxt i915 intel_rapl_msr mei_hdcp mei_pxp joydev at24 watchdog btintel atkbd libps2 serio radeon btbcm vivaldi_fmap btmtk intel_rapl_common snd_hda_codec_hdmi bluetooth uvcvideo nls_iso8859_1 applesmc nls_cp437 x86_pkg_temp_thermal snd_hda_intel intel_powerclamp vfat videobuf2_vmalloc coretemp fat snd_intel_dspcfg crc32_pclmul uvc polyval_clmulni snd_intel_sdw_acpi loop videobuf2_memops snd_hda_codec tun drm_suballoc_helper polyval_generic drm_ttm_helper drm_buddy tap ecdh_generic videobuf2_v4l2 gf128mul macvlan ttm ghash_clmulni_intel ecc tg3 [ +0.000044] videodev bridge snd_hda_core rapl crc16 drm_display_helper cec mousedev snd_hwdep evdev intel_cstate bcm5974 hid_appleir videobuf2_common stp mac_hid libphy snd_pcm drm_kms_helper acpi_als mei_me intel_uncore llc mc snd_timer intel_gtt industrialio_triggered_buffer apple_mfi_fastcharge i2c_i801 mei snd lpc_ich agpgart ptp i2c_smbus thunderbolt apple_gmux i2c_algo_bit kfifo_buf video industrialio soundcore pps_core wmi tiny_power_button sbs sbshc button ac cordic bcma mac80211 cfg80211 ssb rfkill libarc4 kvm_intel kvm drm irqbypass fuse backlight firmware_class efi_pstore configfs efivarfs dmi_sysfs ip_tables x_tables autofs4 dm_crypt cbc encrypted_keys trusted asn1_encoder tee tpm rng_core input_leds hid_apple led_class hid_generic usbhid hid sd_mod t10_pi crc64_rocksoft crc64 crc_t10dif crct10dif_generic ahci libahci libata uhci_hcd ehci_pci ehci_hcd crct10dif_pclmul crct10dif_common sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 aesni_intel usbcore scsi_mod libaes crypto_simd cryptd scsi_common [ +0.000055] usb_common rtc_cmos btrfs blake2b_generic libcrc32c crc32c_generic crc32c_intel xor raid6_pq dm_snapshot dm_bufio dm_mod dax [last unloaded: b43(O)] [ +0.000009] CPU: 7 PID: 25513 Comm: irq/17-b43 Tainted: G W O 6.6.7 #1-NixOS [ +0.000003] Hardware name: Apple Inc. MacBookPro8,3/Mac-942459F5819B171B, BIOS 87.0.0.0.0 06/13/2019 [ +0.000001] RIP: 0010:__ieee80211_wake_queue+0xd5/0x180 [mac80211] [ +0.000046] Code: 00 45 85 e4 0f 85 9b 00 00 00 48 8d bd 40 09 00 00 f0 48 0f ba ad 48 09 00 00 00 72 0f 5b 5d 41 5c 41 5d 41 5e e9 cb 6d 3c d0 <0f> 0b 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 48 8d b4 16 94 00 00 [ +0.000002] RSP: 0018:ffffc90003c77d60 EFLAGS: 00010097 [ +0.000001] RAX: 0000000000000001 RBX: 0000000000000002 RCX: 0000000000000000 [ +0.000001] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88820b924900 [ +0.000002] RBP: ffff88820b924900 R08: ffffc90003c77d90 R09: 000000000003bfd0 [ +0.000001] R10: ffff88820b924900 R11: ffffc90003c77c68 R12: 0000000000000000 [ +0.000001] R13: 0000000000000000 R14: ffffc90003c77d90 R15: ffffffffc0fa6f40 [ +0.000001] FS: 0000000000000000(0000) GS:ffff88846fb80000(0000) knlGS:0000000000000000 [ +0.000001] CS: 0010 DS: 0 ---truncated--- En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: b43: Detener/activar la cola correcta en la ruta DMA Tx cuando QoS está deshabilitado Cuando QoS está deshabilitado, el valor de prioridad de la cola no se asignará a la cola ieee80211 correcta ya que solo hay una cola. Detener/activar la cola 0 cuando la QoS está deshabilitada para evitar intentar detener/activar una cola inexistente y no poder detener/activar la cola real instanciada. Registro del problema antes del cambio (con el parámetro del kernel qos=0): [+5.112651] ------------[ cortar aquí ]------------ [ +0.000005] ADVERTENCIA: CPU: 7 PID: 25513 en net/mac80211/util.c:449 __ieee80211_wake_queue+0xd5/0x180 [mac80211] [ +0.000067] Módulos vinculados en: b43(O) snd_seq_dummy snd_hrtimer snd_seq snd_seq_device nft _chain_nat xt_MASQUERADE nf_nat xfrm_user xfrm_algo xt_addrtype superposición ccm af_packet amdgpu snd_hda_codec_cirrus snd_hda_codec_generic ledtrig_audio drm_exec amdxcp gpu_sched xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_rpfilter ipt_rpfilter xt_pkttype xt_LOG nf_log_syslog xt _tcpudp nft_compat nf_tables nfnetlink sch_fq_codel btusb uinput iTCO_wdt ctr btrtl intel_pmc_bxt i915 intel_rapl_msr mei_hdcp mei_pxp joydev at24 watchdog btintel atkbd libps2 serio radeon btbcm vivaldi_fmap btmtk intel _rapl_common snd_hda_codec_hdmi bluetooth uvcvideo nls_iso8859_1 applesmc nls_cp437 x86_pkg_temp_thermal snd_hda_intel intel_powerclamp vfat videobuf2_vmalloc coretemp fat snd_intel_dspcfg crc32_pclmul uvc polyval_clmulni snd_intel_sdw_acpi loop videobuf2_memops snd_hda_codec tun drm_suballoc_helper polyval_generic drm_ttm_helper drm_ buddy tap ecdh_generic videobuf2_v4l2 gf128mul macvlan ttm ghash_clmulni_intel ecc tg3 [+0.000044] videodev bridge snd_hda_core rapl crc16 drm_display_helper cec mousedev snd_hwdep evdev intel_cstate bcm5974 hid_appleir videobuf2_common _hid libphy snd_pcm drm_kms_helper acpi_als mei_me intel_uncore llc mc snd_timer intel_gtt industrialio_triggered_buffer apple_mfi_fastcharge i2c_i801 mei snd lpc_ich agpgart ptp i2c_smbus thunderbolt apple_gmux i2c_algo_bit kfifo_buf video industrialio soundcore pps_core wmi tiny_power_button sbs sbshc botón ac cordic bcma mac80211 cfg80211 ssb rfkill libarc4 kvm_intel kvm drm irqbypass fusible retroiluminación firmware_class efi_pstore configfs efivarfs dmi_sysfs ip_tables x_tables autofs4 dm_crypt cbc encrypted_keys asn1_encoder tee tpm rng_core input_leds hid_apple led_class hid_generic usbhid hid sd_mod t10_pi crc64_rocksoft crc64 crc_t10dif crct10dif_generic ahci libahci libata uhci_hcd ehci_pci cd crct10dif_pclmul crct10dif_common sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 aesni_intel usbcore scsi_mod libaes crypto_simd cryptd scsi_common [ +0.000055] usb_common rtc_cmos btrfs blake2b_generic libcrc32c crc32c_generic crc32c_intel xor raid6_pq dm_snapshot dm_bufio dm_mod dax [última descarga: b43(O)] [ +0.000009] CPU: 7 PID: 25513 Comm: irq/17-b43 Contaminado: GWO 6.6.7 #1-NixOS [ +0.000 003] Hardware nombre: Apple Inc. • https://git.kernel.org/stable/c/e6f5b934fba8c44c87c551e066aa7ca6fde2939e https://git.kernel.org/stable/c/1824f942527f784a19e01eac2d9679a21623d010 https://git.kernel.org/stable/c/31aaf17200c336fe258b70d39c40645ae19d0240 https://git.kernel.org/stable/c/49f067726ab01c87cf57566797a8a719badbbf08 https://git.kernel.org/stable/c/04a2b6eff2ae1c19cb7f41e803bcbfaf94c06455 https://git.kernel.org/stable/c/c67698325c68f8768db858f5c87c34823421746d https://git.kernel.org/stable/c/bc845e2e42cae95172c04bf29807c480f51a2a83 https://git.kernel.org/stable/c/4049a9f80513a6739c5677736a4c88f96 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-26851 – netfilter: nf_conntrack_h323: Add protection for bmp length out of range
https://notcve.org/view.php?id=CVE-2024-26851
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: Add protection for bmp length out of range UBSAN load reports an exception of BRK#5515 SHIFT_ISSUE:Bitwise shifts that are out of bounds for their data type. vmlinux get_bitmap(b=75) + 712 <net/netfilter/nf_conntrack_h323_asn1.c:0> vmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, level=134443100) + 1956 <net/netfilter/nf_conntrack_h323_asn1.c:592> vmlinux decode_choice(base=0xFFFFFFD0080370F0, level=23843636) + 1216 <net/netfilter/nf_conntrack_h323_asn1.c:814> vmlinux decode_seq(f=0xFFFFFFD0080371A8, level=134443500) + 812 <net/netfilter/nf_conntrack_h323_asn1.c:576> vmlinux decode_choice(base=0xFFFFFFD008037280, level=0) + 1216 <net/netfilter/nf_conntrack_h323_asn1.c:814> vmlinux DecodeRasMessage() + 304 <net/netfilter/nf_conntrack_h323_asn1.c:833> vmlinux ras_help() + 684 <net/netfilter/nf_conntrack_h323_main.c:1728> vmlinux nf_confirm() + 188 <net/netfilter/nf_conntrack_proto.c:137> Due to abnormal data in skb->data, the extension bitmap length exceeds 32 when decoding ras message then uses the length to make a shift operation. It will change into negative after several loop. UBSAN load could detect a negative shift as an undefined behaviour and reports exception. So we add the protection to avoid the length exceeding 32. Or else it will return out of range error and stop decoding. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: netfilter: nf_conntrack_h323: Agregar protección para longitud de bmp fuera de rango La carga de UBSAN informa una excepción de BRK#5515 SHIFT_ISSUE: desplazamientos bit a bit que están fuera de los límites para su tipo de datos. vmlinux get_bitmap(b=75) + 712 vmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, nivel=134443100) + 1956 vmlinux decode_choice (base=0xFFFFFFD0080370F0, nivel=23843636) + 1216 vmlinux decode_seq(f=0xFFFFFFD0080371A8, nivel=134443500) + 812 vmlinux decode_choice(base =0xFFFFFFD008037280, nivel=0) + 1216 vmlinux DecodeRasMessage() + 304 vmlinux ras_help() + 684 vmlinux nf_confirm() + 188 Debido a datos anormales en skb->data, la longitud del mapa de bits de la extensión excede 32 cuando se decodifica el mensaje ras y luego usa la longitud para realizar una operación de cambio . Cambiará a negativo después de varios bucles. • https://git.kernel.org/stable/c/5e35941d990123f155b02d5663e51a24f816b6f3 https://git.kernel.org/stable/c/98db42191329c679f4ca52bec0b319689e1ad8cb https://git.kernel.org/stable/c/4bafcc43baf7bcf93566394dbd15726b5b456b7a https://git.kernel.org/stable/c/ccd1108b16ab572d9bf635586b0925635dbd6bbc https://git.kernel.org/stable/c/b3c0f553820516ad4b62a9390ecd28d6f73a7b13 https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591 https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c https://git.kernel.org/stable/c/80ee5054435a11c87c9a4f30f1ff75008 • CWE-20: Improper Input Validation •
CVSS: 4.4EPSS: 0%CPEs: 6EXPL: 0CVE-2024-26846 – nvme-fc: do not wait in vain when unloading module
https://notcve.org/view.php?id=CVE-2024-26846
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: do not wait in vain when unloading module The module exit path has race between deleting all controllers and freeing 'left over IDs'. To prevent double free a synchronization between nvme_delete_ctrl and ida_destroy has been added by the initial commit. There is some logic around trying to prevent from hanging forever in wait_for_completion, though it does not handling all cases. E.g. blktests is able to reproduce the situation where the module unload hangs forever. If we completely rely on the cleanup code executed from the nvme_delete_ctrl path, all IDs will be freed eventually. This makes calling ida_destroy unnecessary. We only have to ensure that all nvme_delete_ctrl code has been executed before we leave nvme_fc_exit_module. • https://git.kernel.org/stable/c/4f2c95015ec2a1899161be6c0bdaecedd5a7bfb2 https://git.kernel.org/stable/c/0bf567d6d9ffe09e059bbdfb4d07143cef42c75c https://git.kernel.org/stable/c/085195aa90a924c79e35569bcdad860d764a8e17 https://git.kernel.org/stable/c/baa6b7eb8c66486bd64608adc63fe03b30d3c0b9 https://git.kernel.org/stable/c/c0882c366418bf9c19e1ba7f270fe377a9bf5d67 https://git.kernel.org/stable/c/70fbfc47a392b98e5f8dba70c6efc6839205c982 https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html https://access.redhat.com/security/cve/CVE-2024 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-415: Double Free •