CVE-2023-52995— riscv/kprobe: Fix instruction simulation of JALR
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I. Basic Information for CVE-2023-52995
Vulnerability Information
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Vulnerability Title
riscv/kprobe: Fix instruction simulation of JALR
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: riscv/kprobe: Fix instruction simulation of JALR Set kprobe at 'jalr 1140(ra)' of vfs_write results in the following crash: [ 32.092235] Unable to handle kernel access to user memory without uaccess routines at virtual address 00aaaaaad77b1170 [ 32.093115] Oops [#1] [ 32.093251] Modules linked in: [ 32.093626] CPU: 0 PID: 135 Comm: ftracetest Not tainted 6.2.0-rc2-00013-gb0aa5e5df0cb-dirty #16 [ 32.093985] Hardware name: riscv-virtio,qemu (DT) [ 32.094280] epc : ksys_read+0x88/0xd6 [ 32.094855] ra : ksys_read+0xc0/0xd6 [ 32.095016] epc : ffffffff801cda80 ra : ffffffff801cdab8 sp : ff20000000d7bdc0 [ 32.095227] gp : ffffffff80f14000 tp : ff60000080f9cb40 t0 : ffffffff80f13e80 [ 32.095500] t1 : ffffffff8000c29c t2 : ffffffff800dbc54 s0 : ff20000000d7be60 [ 32.095716] s1 : 0000000000000000 a0 : ffffffff805a64ae a1 : ffffffff80a83708 [ 32.095921] a2 : ffffffff80f160a0 a3 : 0000000000000000 a4 : f229b0afdb165300 [ 32.096171] a5 : f229b0afdb165300 a6 : ffffffff80eeebd0 a7 : 00000000000003ff [ 32.096411] s2 : ff6000007ff76800 s3 : fffffffffffffff7 s4 : 00aaaaaad77b1170 [ 32.096638] s5 : ffffffff80f160a0 s6 : ff6000007ff76800 s7 : 0000000000000030 [ 32.096865] s8 : 00ffffffc3d97be0 s9 : 0000000000000007 s10: 00aaaaaad77c9410 [ 32.097092] s11: 0000000000000000 t3 : ffffffff80f13e48 t4 : ffffffff8000c29c [ 32.097317] t5 : ffffffff8000c29c t6 : ffffffff800dbc54 [ 32.097505] status: 0000000200000120 badaddr: 00aaaaaad77b1170 cause: 000000000000000d [ 32.098011] [<ffffffff801cdb72>] ksys_write+0x6c/0xd6 [ 32.098222] [<ffffffff801cdc06>] sys_write+0x2a/0x38 [ 32.098405] [<ffffffff80003c76>] ret_from_syscall+0x0/0x2 Since the rs1 and rd might be the same one, such as 'jalr 1140(ra)', hence it requires obtaining the target address from rs1 followed by updating rd. [Palmer: Pick Guo's cleanup]
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于riscv架构下JALR指令模拟错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-52995
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Same Patch Batch · Linux · 2025-03-27 · 124 CVEs total
| CVE-2023-52983 | block, bfq: fix uaf for bfqq in bic_set_bfqq() | |
| CVE-2023-52998 | net: fec: Use page_pool_put_full_page when freeing rx buffers | |
| CVE-2023-52999 | net: fix UaF in netns ops registration error path | |
| CVE-2023-52997 | ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() | |
| CVE-2023-52996 | ipv4: prevent potential spectre v1 gadget in fib_metrics_match() | |
| CVE-2023-52994 | acpi: Fix suspend with Xen PV | |
| CVE-2023-52993 | x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL | |
| CVE-2023-52992 | bpf: Skip task with pid=1 in send_signal_common() | |
| CVE-2023-52991 | net: fix NULL pointer in skb_segment_list | |
| CVE-2023-52989 | firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region | |
| CVE-2023-52988 | ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path() | |
| CVE-2023-52987 | ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write() | |
| CVE-2023-52986 | bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener | |
| CVE-2023-52985 | arm64: dts: imx8mm-verdin: Do not power down eth-phy | |
| CVE-2023-52984 | net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices | |
| CVE-2023-52982 | fscache: Use wait_on_bit() to wait for the freeing of relinquished volume | |
| CVE-2022-49761 | btrfs: always report error in run_one_delayed_ref() | |
| CVE-2022-49760 | mm/hugetlb: fix PTE marker handling in hugetlb_change_protection() | |
| CVE-2022-49759 | VMCI: Use threaded irqs instead of tasklets | |
| CVE-2023-52973 | vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF |
Showing top 20 of 124 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
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