CVE-2024-36907
SUNRPC: add a missing rpc_stat for TCP TLS
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: add a missing rpc_stat for TCP TLS
Commit 1548036ef120 ("nfs: make the rpc_stat per net namespace") added
functionality to specify rpc_stats function but missed adding it to the
TCP TLS functionality. As the result, mounting with xprtsec=tls lead to
the following kernel oops.
[ 128.984192] Unable to handle kernel NULL pointer dereference at
virtual address 000000000000001c
[ 128.985058] Mem abort info:
[ 128.985372] ESR = 0x0000000096000004
[ 128.985709] EC = 0x25: DABT (current EL), IL = 32 bits
[ 128.986176] SET = 0, FnV = 0
[ 128.986521] EA = 0, S1PTW = 0
[ 128.986804] FSC = 0x04: level 0 translation fault
[ 128.987229] Data abort info:
[ 128.987597] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[ 128.988169] CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[ 128.988811] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[ 128.989302] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000106c84000
[ 128.990048] [000000000000001c] pgd=0000000000000000, p4d=0000000000000000
[ 128.990736] Internal error: Oops: 0000000096000004 [#1] SMP
[ 128.991168] Modules linked in: nfs_layout_nfsv41_files
rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace netfs
uinput dm_mod nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct
nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill
ip_set nf_tables nfnetlink qrtr vsock_loopback
vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock
sunrpc vfat fat uvcvideo videobuf2_vmalloc videobuf2_memops uvc
videobuf2_v4l2 videodev videobuf2_common mc vmw_vmci xfs libcrc32c
e1000e crct10dif_ce ghash_ce sha2_ce vmwgfx nvme sha256_arm64
nvme_core sr_mod cdrom sha1_ce drm_ttm_helper ttm drm_kms_helper drm
sg fuse
[ 128.996466] CPU: 0 PID: 179 Comm: kworker/u4:26 Kdump: loaded Not
tainted 6.8.0-rc6+ #12
[ 128.997226] Hardware name: VMware, Inc. VMware20,1/VBSA, BIOS
VMW201.00V.21805430.BA64.2305221830 05/22/2023
[ 128.998084] Workqueue: xprtiod xs_tcp_tls_setup_socket [sunrpc]
[ 128.998701] pstate: 81400005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[ 128.999384] pc : call_start+0x74/0x138 [sunrpc]
[ 128.999809] lr : __rpc_execute+0xb8/0x3e0 [sunrpc]
[ 129.000244] sp : ffff8000832b3a00
[ 129.000508] x29: ffff8000832b3a00 x28: ffff800081ac79c0 x27: ffff800081ac7000
[ 129.001111] x26: 0000000004248060 x25: 0000000000000000 x24: ffff800081596008
[ 129.001757] x23: ffff80007b087240 x22: ffff00009a509d30 x21: 0000000000000000
[ 129.002345] x20: ffff000090075600 x19: ffff00009a509d00 x18: ffffffffffffffff
[ 129.002912] x17: 733d4d4554535953 x16: 42555300312d746e x15: ffff8000832b3a88
[ 129.003464] x14: ffffffffffffffff x13: ffff8000832b3a7d x12: 0000000000000008
[ 129.004021] x11: 0101010101010101 x10: ffff8000150cb560 x9 : ffff80007b087c00
[ 129.004577] x8 : ffff00009a509de0 x7 : 0000000000000000 x6 : 00000000be8c4ee3
[ 129.005026] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff000094d56680
[ 129.005425] x2 : ffff80007b0637f8 x1 : ffff000090075600 x0 : ffff00009a509d00
[ 129.005824] Call trace:
[ 129.005967] call_start+0x74/0x138 [sunrpc]
[ 129.006233] __rpc_execute+0xb8/0x3e0 [sunrpc]
[ 129.006506] rpc_execute+0x160/0x1d8 [sunrpc]
[ 129.006778] rpc_run_task+0x148/0x1f8 [sunrpc]
[ 129.007204] tls_probe+0x80/0xd0 [sunrpc]
[ 129.007460] rpc_ping+0x28/0x80 [sunrpc]
[ 129.007715] rpc_create_xprt+0x134/0x1a0 [sunrpc]
[ 129.007999] rpc_create+0x128/0x2a0 [sunrpc]
[ 129.008264] xs_tcp_tls_setup_socket+0xdc/0x508 [sunrpc]
[ 129.008583] process_one_work+0x174/0x3c8
[ 129.008813] worker_thread+0x2c8/0x3e0
[ 129.009033] kthread+0x100/0x110
[ 129.009225] ret_from_fork+0x10/0x20
[ 129.009432] Code: f0ffffc2 911fe042 aa1403e1 aa1303e0 (b9401c83)
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: SUNRPC: agrega un rpc_stat faltante para TCP TLS. El commit 1548036ef120 ("nfs: crea rpc_stat por espacio de nombres de red") agregó funcionalidad para especificar la función rpc_stats pero no la agregó a la funcionalidad TCP TLS. . Como resultado, montar con xprtsec=tls conduce a los siguientes errores del kernel. [128.984192] No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 000000000000001c [128.985058] Información de cancelación de memoria: [128.985372] ESR = 0x0000000096000004 [128.985709] EC = 0x25: (EL actual), IL = 32 bits [ 128.986176] SET = 0 , FnV = 0 [ 128.986521] EA = 0, S1PTW = 0 [ 128.986804] FSC = 0x04: error de traducción de nivel 0 [ 128.987229] Información de cancelación de datos: [ 128.987597] ISV = 0, ISS = 0x00000004, ISS2 = 0x000 00000 [ 128.988169] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 128.988811] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 128.989302] tabla de páginas de usuario: páginas de 4k, VA de 48 bits, pgdp=0000000106c84000 [ 128.990048] [000000000000001c] pgd=0000000000000000, p4d=0000000000000000 [ 128.990736] Error interno: Ups: 0000000096000004 [#1] SMP [ 168] Módulos vinculados en: nfs_layout_nfsv41_files rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd Grace netfs uinput dm_mod nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf _rechazar_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink qrtr vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock pc vfat fat uvcvideo videobuf2_vmalloc videobuf2_memops uvc videobuf2_v4l2 videodev videobuf2_common mc vmw_vmci xfs libcrc32c e1000e crct10dif_ce ghash_ce sha2_ce vmwgfx nvme sha256_arm64 nvme_core sr_mod cdrom sha1_ce _ttm_helper ttm drm_kms_helper drm sg fusible [ 128.996466 ] CPU: 0 PID: 179 Comm: kworker/u4:26 Kdump: cargado No contaminado 6.8.0-rc6+ #12 [ 128.997226] Nombre de hardware: VMware, Inc. VMware20,1/VBSA, BIOS VMW201.00V.21805430.BA64 .2305221830 22/05/2023 [ 128.998084] Cola de trabajo: xprtiod xs_tcp_tls_setup_socket [sunrpc] [ 128.998701] pstate: 81400005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 28.999384] ordenador: call_start+0x74/ 0x138 [sunrpc] [128.999809] lr: __rpc_execute+0xb8/0x3e0 [sunrpc] [129.000244] sp: ffff8000832b3a00 [129.000508] x29: ffff8000832b3a00 x28: 0081ac79c0 x27: ffff800081ac7000 [ 129.001111] x26: 0000000004248060 x25: 00000000000000000 x24: ffff800081596008 [ 129.001757] x23: ffff80007b087240 x22: ffff00009a509d30 x21: 0000000000000000 [ 129.002345] x20: ffff000090075600 x19: ffff00009a509d00 x18: [ 129.002912] x17: 733d4d4554535953 x16: 42555300312d746e x15: ffff8000832b3a88 [ 129.003464] x14: ffffffffffffffff x13: ffff8000832b3a7d x12: 0000000000000008 [129.004021] x11: 0101010101010101 x10: ffff8000150cb560 x9: ffff80007b087c00 [129.004577] x8: ffff00009a509de0 x7: 0000000000000000 x6: 00000000be8c4ee3 [ 129.005026] x5: 0000000000000000 x4: 0000000000000000 x3: ffff000094d56680 [129.005425] x2: ffff80007b0637f8 x1: ffff000090075600 x0: 00009a509d00 [ 129.005824] Rastreo de llamadas: [ 129.005967] call_start+0x74/0x138 [sunrpc] [ 129.006233] __rpc_execute+0xb8/0x3e0 [sunrpc] [ 129.006506] rpc_execute+0x160/0x1d8 [sunrpc] [ 129.006778] run_task+0x148/0x1f8 [sunrpc] [ 129.007204] tls_probe+0x80/ 0xd0 [sunrpc] [ 129.007460] rpc_ping+0x28/0x80 [sunrpc] [ 129.007715] rpc_create_xprt+0x134/0x1a0 [sunrpc] [ 129.007999] rpc_create+0x128/0x2a0 [ 129.008264] xs_tcp_tls_setup_socket+0xdc/0x508 [sunrpc] [ 129.008583 ] Process_one_work+0x174/0x3c8 [ 129.008813] work_thread+0x2c8/0x3e0 [ 129.009033] kthread+0x100/0x110 [ 129.009225] ret_from_fork+0x10/0x20 [ 129.009432] Código: ffffc2 911fe042 aa1403e1 aa1303e0 (b9401c83)
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-05-30 CVE Reserved
- 2024-05-30 CVE Published
- 2024-05-31 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/19f51adc778fb84c2eb07eb71800fb0d9f0ff13a | Vuln. Introduced | |
| https://git.kernel.org/stable/c/afdbc21a92a0cdc497d8879aeff7b284094fae02 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/7ceb89f4016ea6ed3e59b015d4200739d45c790e | Vuln. Introduced | |
| https://git.kernel.org/stable/c/2b7f2d663a965943e8820b6a40cc2abe2eee7431 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.4.276 Search vendor "Linux" for product "Linux Kernel" and version "5.4.276" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.10.217 Search vendor "Linux" for product "Linux Kernel" and version "5.10.217" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15.159 Search vendor "Linux" for product "Linux Kernel" and version "5.15.159" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.1.91 Search vendor "Linux" for product "Linux Kernel" and version "6.1.91" | en |
Affected
| ||||||