Samba: PANIC: assert failed at ../../source3/smbd/fd_handle.c(40): (fh->fd == -1) || (fh->fd == AT_FDCWD)

Code:

[2025/02/17 13:38:03.576961,  0] ../../source3/smbd/fd_handle.c:39(fd_handle_destructor)  PANIC: assert failed at ../../source3/smbd/fd_handle.c(39): (fh->fd == -1) || (fh->fd == AT_FDCWD)[2025/02/17 13:38:03.577101,  0] ../../lib/util/fault.c:173(smb_panic_log)  ===============================================================[2025/02/17 13:38:03.577165,  0] ../../lib/util/fault.c:174(smb_panic_log)  INTERNAL ERROR: assert failed: (fh->fd == -1) || (fh->fd == AT_FDCWD) in pid 2794 (4.17.12-Debian)[2025/02/17 13:38:03.577217,  0] ../../lib/util/fault.c:178(smb_panic_log)  If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting[2025/02/17 13:38:03.577272,  0] ../../lib/util/fault.c:183(smb_panic_log)  ===============================================================[2025/02/17 13:38:03.577321,  0] ../../lib/util/fault.c:184(smb_panic_log)  PANIC (pid 2794): assert failed: (fh->fd == -1) || (fh->fd == AT_FDCWD) in 4.17.12-Debian[2025/02/17 13:38:03.615907,  0] ../../lib/util/fault.c:292(log_stack_trace)  BACKTRACE: 27 stack frames:   #0 /usr/lib/x86_64-linux-gnu/samba/libgenrand-samba4.so.0(log_stack_trace+0x2e) [0x7fddc6acc55e]   #1 /usr/lib/x86_64-linux-gnu/samba/libgenrand-samba4.so.0(smb_panic+0x9) [0x7fddc6acc7b9]   #2 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(+0x4f23b) [0x7fddc6eaa23b]   #3 /lib/x86_64-linux-gnu/libtalloc.so.2(+0x47af) [0x7fddc6a857af]   #4 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(file_free+0xd6) [0x7fddc6eaff36]   #5 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(+0xbd031) [0x7fddc6f18031]   #6 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(smbd_smb2_request_process_close+0x211) [0x7fddc6f187b1]   #7 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(smbd_smb2_request_dispatch+0x1b02) [0x7fddc6f0bfb2]   #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(+0xb2111) [0x7fddc6f0d111]   #9 /lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_invoke_fd_handler+0x91) [0x7fddc6a728c1]   #10 /lib/x86_64-linux-gnu/libtevent.so.0(+0xee07) [0x7fddc6a78e07]   #11 /lib/x86_64-linux-gnu/libtevent.so.0(+0xcef7) [0x7fddc6a76ef7]   #12 /lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x91) [0x7fddc6a71ba1]   #13 /lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fddc6a71e7b]   #14 /lib/x86_64-linux-gnu/libtevent.so.0(+0xce97) [0x7fddc6a76e97]   #15 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base-samba4.so.0(smbd_process+0x82f) [0x7fddc6efa21f]   #16 /usr/sbin/smbd(+0x9e00) [0x55c975a64e00]   #17 /lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_invoke_fd_handler+0x91) [0x7fddc6a728c1]   #18 /lib/x86_64-linux-gnu/libtevent.so.0(+0xee07) [0x7fddc6a78e07]   #19 /lib/x86_64-linux-gnu/libtevent.so.0(+0xcef7) [0x7fddc6a76ef7]   #20 /lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x91) [0x7fddc6a71ba1]   #21 /lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7fddc6a71e7b]   #22 /lib/x86_64-linux-gnu/libtevent.so.0(+0xce97) [0x7fddc6a76e97]   #23 /usr/sbin/smbd(main+0x1489) [0x55c975a62269]   #24 /lib/x86_64-linux-gnu/libc.so.6(+0x2724a) [0x7fddc68b024a]   #25 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x85) [0x7fddc68b0305]   #26 /usr/sbin/smbd(_start+0x21) [0x55c975a62b41][2025/02/17 13:38:03.616416,  0] ../../source3/lib/util.c:702(smb_panic_s3)  smb_panic(): calling panic action [/usr/share/samba/panic-action 2794][2025/02/17 13:38:04.121642,  0] ../../source3/lib/util.c:709(smb_panic_s3)  smb_panic(): action returned status 0[2025/02/17 13:38:04.121884,  0] ../../source3/lib/dumpcore.c:315(dump_core)  dumping core in /var/log/samba/cores/smbd